Question

7(a-2)=5(a+3)

5(1-×)-2×+1=-3(2+×)

Answer 1

Olá Heloísa...

7(a - 2)= 5(a + 3)

7a - 14= 5a + 15

7a - 5a= 15 + 14

2a= 29

a= 29/2

5(1 - x) - 2x + 1= - 3(2 + x)

5 - 5x - 2x + 1= - 6 - 3x

- 5x - 2x + 3x= - 6 - 5 - 1

- 4x= - 12>>.(-1)

4x= 12

x= 12/4

x= 3