Question

Resolva as equações

A- (3×+1).5=3.(2×-7)

B- (4×-3).2=3.(3×+1)

Answer 1

a) (3×+1).5=3.(2×-7)
15x + 5= 6x - 21
15x - 6x= -21 - 5
9x= -26
x= -26/9
x= -2,88


b) (4×-3).2=3.(3×+1)
8x - 6= 9x + 3
8x - 9x= 3 + 6
-x= 9 (×-1)
x= -9