Solve the equation (5×+7)1/5=(8-6×)1/5

(5x+7)(1/5)=(8−6x)(1/5)
Simplify both sides. In order to do this you need to distribute 1/5 in each expression.
(5x)(1/5)+(7)(1/5)=(8)(1/5)+(−6x)(1/5)
x+7/5=8/5+−6/5x
x+7/5=−6/5x+8/5
Now you need to add (-6/5)x to both sides. This leaves you with
(5/11)x+7/5=8/5
Now subtract 7/5 from both sides.
(5/11)x=1/5
Divide both sides by 5/11
x=1/11

B. because the 7 represents "seven times", x represents "a number", 12 represents "plus twelve", and -4 represents "minus four"