Question

Resolva as equações de primeiro grau abaixo:
A) 5( x - 1 ) = x 11
B) 2 ( s - 4 ) + 2s - 5 = 5( 3 - s )

Answer 1

5x-5=11x
5x-11x=5
-6x=5 (-1)
6x=5
x=5/6

Answer 2

a) 5(x-1)=11x
5x-5=11x
5x-11x=5
-6x=5.(-1)
6x=-5
x=-5/6
b) 2(s-4)+2s-5=5(3-s)
2s-8+2s-5=15-5s
2s+2s+5s=15+5+8
9s=28
s=28/9