Question

1.
Solve the linear equation to find the value of x: 2(5x-5)+51-x=21

Answer 1

1) Distribute 

$10x-10+51-x=21$

2) Combine like terms 

$9x+41=21$

3) Subtract 41 from both sides
$9x=-20$

Answer: $x= \frac{-20}{9}$