Question

align="absmiddle" class="latex-formula"> = -2

Answer 1

$\frac{y - 1}{4} = -2 \\ \\ \frac{y - 1}{4} * 4 = -2 *4 \\ \\ y - 1 = -8 \\ \\ y - 1 +1 = -8 +1 \\ \\ y = -7$

Answer 2

Remember
you can do anything to an equation as long as you do it to both sides

and
a/b times b=a since b's cancel out
and
a-a=0
we hates fraction
times both sides by 4
4(y-1)/4=-8
4/4(y-1)=-8
1(y-1)=-8
y-1=-8
add 1
y+1-1=-8+1
y+0=-7
y=-7