3x of 4 minus 1 of 4 = 2 of 5

3x of 4 minus 1 of 4 = 2 of 5

3/4x=2/5+1/4
x=13/20÷3/4
x=13/15

-X-3 / 5 = 3x + 4 / 15

If it is a finite term
There is no definite formula
If it's the sum of infinite numbers
1/1²+1/2²+1/3²+…… +1/n²+…… =π²/6
forty-one trillion and one hundred and fifty-six billion four hundred and fifteen million eight hundred and sixty-three thousand four hundred and fifteen

Find the result and operation process of - 5 / X - 3 = 15 / 3x + 4

-5 x-3 = 15 3x + 4
-3(x-3)=3x+4
-3x+9=3x+4
-3x-3x=4-9
-6x=5
X = 5 / 6

Minus five times x-3 equals fifteen times 3x + 4

-(x-3)/5=(3x+4)/15
-3(x-3)=3x+4
-3x+9=3x+4
-6x=-5
x=5/6

3x of 4 = (x + 10) * 3 of 5

Two sides by 20 / 3
5x=4(x+10)
5x=4x+4×10
5x-4x=40
x=40

1.5 + 3x = 0.1, find X

1.5÷3x=0.3x=1.5÷0.1 3x=15 x=5

(x + 1) 2-1 = (3x-1) 0.5
Multiply two at the same time
We get x + 1-2 = 3x-1
-2x=-1+2-1
-2x=0
Am I wrong? If I am wrong, where is the mistake? Please give me some advice!
What if the denominator is 0.3? How to convert?

You are wrong. The right side of the equal sign is actually 2 (3x-1). When you multiply 2 at the same time, the right side of the equal sign is 4 (3x-1), and finally x = 3 / 11

Given x ^ 2 + X-1 = 0, find the value of 3x ^ 2 + 3x-5
1. Given x ^ 2 + X-1 = 0, find 3x ^ 2 + 3x-5=___
2. The following factorization: ① x ^ 3-4x = x (x ^ 2-4); ② a ^ 2-3a + 2 = (A-2) (A-1); ③ a ^ 2-2a-2 = a (A-2) - 2; ④ x ^ 2 + X + 1 / 4 = (x + 1 / 2) ^ 2___
3. Factorization factor: - x ^ 2 + 2x ^ 2-x=___
4. Factorization factor: 2x ^ 3-8x ^ 2Y + 8xy ^ 2=___
5. Simplification: (1-3a) ^ 2-2 (1-3a)

1. The original formula = 3 (x ^ 2 + x-1) - 2 = - 22, the first one is not completely decomposed; the last form of the third one is not called factorization (factorization must be written as a product, no addition or subtraction) so the second and fourth ones are correct. I guess the first term is - x ^ 3, so the original formula = - x (x-1) ^ 24, the original formula = 2x (x ^ 2-4xy + 4Y ^ 2) = 2x (X-2

0.5 x-0.7 3x-1 = 5

3.5 on both sides
7x-5(3x-1)=17.5
7x-5*3x+5*1=17.5
15x-7x=5-17.5
8x=-12.5
x=-12.5÷8
x=-1.5625

If (x + 1) ^ 5 \ (- 1-x) ^ 4 = 3x + 7, then x =?

Negative 3
The left equation = (x + 1) ^ 5 (x + 1) ^ 4 = x + 1 = 3x + 7, the equation of one variable is solved, and x = - 2