Simple Algebraic Equations Question 5

What value of $x$ satisfies the following equation?

$$ 2(5x-20)-(25-8x)=7 $$

$4$

$11$

$26$

$36$

Approach 1

$$ 2(5x-20)-(25-8x)=7 $$ $$ 10x-40-25+8x=7 $$ $$ 18x-65=7 $$ $$ 18x=72 $$ $$x=4 $$

Approach 2

We could substitute the values in the answer choices into the initial equation, but the numbers are a bit too large to calculate quickly.