Question

( a ) 5×-3 = 2×+9
( B ) 3(2×-3) +2(×+1)=3×+18

Answer 1

a) 5x -3 = 2x +9
5x - 2x = 9 + 3
3x= 12
x= 12/3
x= 4

b) 3(2x -3) + 2(x +1) = 3x +18
6x - 9 + 2x + 2 = 3x + 18
6x + 2x - 3x= 18 +9 -2
8x - 3x= 27 - 2
5x = 25
x= 25/5
x=5

Bons estudos! :)