Given that a equals minus eight, B equals minus twelve, C equals seven and D equals four, find the value of a minus B plus C minus D

Given that a equals minus eight, B equals minus twelve, C equals seven and D equals four, find the value of a minus B plus C minus D

If a-3b = 3, then the value of 8-A + 3b is______ ．

Solution; ∵ a-3b = 3. 8-A + 3B = 8 - (a-3b) = 8-3 = 5

How much is two minus a quarter x equal to three

If you multiply by 4, you get 8-x = 12

Is a & # 178; B & # 178; necessarily greater than or equal to 2Ab?

Not necessarily the square of - 1 times - 1 is less than the square of - 1 times - 1 times - 1

Fill the nine numbers - 8, - 6, - 4, - 2,0,2,4,6,8 into a vertical and horizontal square, so that the sum of the three diagonal numbers in each row and column is 0

-2 8 -6
-4 0 4
6 -8 2

Determination of addition and subtraction of equations in addition and subtraction elimination method of binary linear equation
How to determine the addition or subtraction of two equations in a system of equations? I will change the coefficient of an unknown number into an equal or opposite number

If you're not sure, you can add the two formulas, but you can get the coefficient. For example, if the coefficient a of the duplicate is not changed, you can get b * b = - A by multiplying the coefficient b of the formula B. you can add the two formulas, and it's convenient for you to eliminate X or y

The divisor and the divisor are represented by} and ■ respectively. According to} divided by ■ equal to 12 and 15} plus ■ equal to 353, what are} and ■ respectively?
Please brothers and sisters

The formula of ■ divided by ■ is equal to 12 and the remaining 15 is: 12 ■ + 15 = ■
The formula of ■ plus ■ equal to 353 is as follows: ■ + ■ = 353: ■ = 353 - ■
12■+15=▲=353-■ 13■=353-15
■=26
▲=353-26=327

Find the minimum integer x whose value of algebraic formula 1-4x + 3 / 3 is not greater than that of algebraic formula 2x-1 / 3
The process should be fast!!!!!!!!

3 - (4x + 3) less than or equal to 2x-1
3-4x-3 less than or equal to 2x-1
-4X less than or equal to 2x-1
1 less than or equal to 6x
6X Daewoo equals 1
X Daewoo equals 1 / 6
So x is one

Given a; b = C; d = 1.8 A + B + C + D = 12.6 a; d = 18; 5, what is a.b.c.d?

According to the condition, a = 1.8b, C = 1.8D, a = 18 / 5D
8b = 18 / 5D, then B = 2D
Then 18 / 5D + 2D + 1.8D + D = 12.6d = 1.5D
a=5.4 b=3 c=2.7

The length of three sides of a right triangle is 6 cm, 8 cm and 10 cm respectively. What is the area of this right triangle?

6 × 8 divided by 2
=24 square centimeters