Question

solve the following equation.
1) 1-2(2-y)=7​

Answer 1

Answer:

1-4+2y=7

2y=7+3

y=10/2

y=5

Answer 2

Answer:

Step-by-step explanation:

$\Large{\mathrm{\green{1-2(2-y)=7}}}$

$\Large{\mathrm{1-4-2y=7}}$

$\Large{\mathrm{5-2y=7}}$

$\Large{\mathrm{5-7=2y}}$

$\Large{\mathrm{-2=2y}}$

$\huge{\mathrm{y=\frac{-2}{2}}}$

$\Large{\boxed{\mathrm{y=-1}}}$