Question

a)2x-3(4-x)=5+4(2x-1)
b)6x-7(1-x-1(10x+4)=0
c)y+4(y-1)=9-2(y+3)
d)x-1(x+1)=12-1(3x-2
e)2.x+2.(x+8)=92
f)3x-1(x+1)=139 com contas pf

Answer 1

a) 2x - 12 + 3x = 5 + 8x - 4. 5x - 12 = 1 + 8x. = 5x-8x = 12 + 1 = - 3x = 13. 3x = - 13. x = -13/3. b)