Question

Find the value of the unknown variable.
a. 3(x + 2) – 2(x - 1) = 7
b. 8(2 x - 5) - 6(3X - 7) = 1​

Answer 1

Step-by-step explanation:

a. 3(x +2) -2(x - 1) = 7

3x + 6 -2x +2 = 7

x +8 = 7

x = -1

b.8(2x - 5) - 6(3x - 7 ) = 1

16x - 40 - 18x + 42 = 1

- 2x + 2 = 1

- 2x = 1 - 2

-2x = -1

x = 1/2