Question

What is the solution to the equation 7(a – 10) = 13 – 2(2a 3)?

Answer 1

`a=7`

Explanation:

we have

`7(a-10)=13-2(2a+3)`

Solve for a

`7a-70=13-4a-6`

Group terms that contain the same variable and move the constants to the other side

`7a+4a=13-6+70`

Combine like terms

`11a=77`

Divide by
`11` both sides

`a=7`

Answer 2

7(a - 10) = 13 - 2(2a + 3)
7a - 70 = 13 - 4a - 6 = 7 - 4a
7a + 4a = 7 + 70
11a = 77
a = 77/11 = 7
a = 7.