HELP PLS ASAP

Solve the linear equation:
12+ 2(5 - 3y) = -9y-1)-2

Solve the equation for x.3(6x - 1) = 12 i've tried doing the math and i can't find out what i'm doing wrong

Are the corresponding angles congruent? explain why or why not.

The perimeter of an equilateral triangle is 4 cm more than the perimeter of a square and the length of a side of the triangle is 8 cm more than the length of a side of the aware. find the length of a side of the equilateral triangle