Question

resolva as equações
a)7(x-2)=5(x+3)
b)2(x-5)+4(x-1)=0
c)3(2x-1)=-2(x+3)
d)7(x-1)-2(x-5)=x-5

Answer 1

A)7x -14= 5x +15       7x-5x= 14 + 15       2x= 29       x=29/4

B) 2x -10 +4x -4 =0      6x= 14       x=14/6

C) 6x -3 = -2x -6     8x =-6 +3    8x= -3      x= -3/8

D) 7x -7 -2x +10 = x - 5        7x -2x -x = -5 +7 +10     4x= 12    x=12/4   x=3