2 (2 minus x) plus 3 (4x minus 2) equals 7 (x plus 4),

2(2-x)+3(4x-2)=7(x+4)
4-2x+12x-6=7x+28
10x-7x=28+2
3x=30
∴x=10

RELATED INFORMATIONS

1. Math problem: monomial! Use letters to represent numbers and translate the following written languages into symbolic languages The sum of two numbers with 1 being opposite to each other is 0 There is such a group of numbers: 3.6.9.12.., please indicate the nth number
2. If the letter factor of a monomial is the third power of a multiplied by the second power of B multiplied by C, and when a = 1, B = 2, C = 3, the value of the monomial is 2, then the coefficient of the monomial is?
3. What are the coefficients and times of 3 / 5 * m's Square * n's Square? There are unknowns in the molecule, and what can't be solved is the monomial?
4. The first problem of monomial elementary school The following statement is correct: A. (a + 2) / 3 is a monomial, b.b/a is a monomial, C. (M + 2) a is a monomial, D. - 3x ˇ 2Y / π is a monomial, note that D. is a negative number
5. If - MX ˇ NY is a monomial about X and y, and the coefficient is 3 and the degree is 4, then M =? N =?
6. 1. If the N-1 power of (a + 1) &# 178; multiplied by X & # 178; multiplied by Y is the quintic monomial of X and y, the conditions that N and a should satisfy are obtained 2. If (a + 1) & # (178); multiply the square of 2a of X by the power of N-1 of Y is the quintic monomial of X and y, the conditions that N and a should satisfy are obtained
7. A monomial with the letters x, y and the coefficient is 2, the degree is 3, write out all the monomials satisfying its conditions
8. Number of items, coefficient and times
9. -What is the coefficient of 15ab? What is the number of times and terms? What is the coefficient of a-2ab + B? What is the number of times and terms?
10. Please write all trinomials containing only the letters x, y and coefficients 2
11. What is fable famous for
12. Fable in my eyes Don't copy! To say from several aspects: the pursuit of truth, love for nature, the spirit of exploration, the pursuit of dreams... Write 2,3 on the line 350 words will do
13. The historical background of fable Hurry up!
14. The background of fable's creation of insects Short!
15. Why is fable known for his insect story Three reputations! It's fable. Why not books? Why
16. Fable's the insect is known as
17. Fable's works
18. Fable created the famous book insect. This book is not only a serious what, but also an excellent what?
19. In addition to the insect, fable also has the names of some books
20. What's fable's insect book? I mean, is it a novel or something? That is to say, the type of the book~