Question

a) 2(3-7)=3(x=4)

b) 2-7x=3+4x

Answer 1

a) 2 (x -7) = 3 (x +4)
2x - 14 = 3x + 12
2x -3x = 12 +14
-x = 26 . (-1)
x= -26

b) 2-7x = 3 +4x
-7x -4x = 3 -2
-11x = 1 . (-1)
11x = -1
x= -1 /11

Bons estudos!