Question

Como resolver essas questões:
A) 25)-(×+5)-6=-9 (×-3)-2
B) 26)×-7+2 (×-4)=-3 (×+2)-8

Answer 1

Resolvendo as equacoes :

A) 25 - ( x + 5 ) - 6 = - 9 ( x - 3 ) - 2
=> 25 - x - 5 - 6 = -9x + 27 - 2
=> - x - 11 + 25 = - 9x + 25
=> - x + 14 = - 9x + 25
=> - x + 9x = 25 - 14
=> 8x = 11
=> x = 11/8

B) 26 (x - 7) + 2 (x- 4) = - 3 (x + 2) - 8
=>26x - 182 + 2x - 8 = - 3x - 6 - 8
=> 26x + 2x - 182 - 8 = - 3x - 6 - 8
=> 28x - 190 = - 3x - 14
=> 28x + 3x = - 14 + 190
=> 31x = 176
=> x = 176/31