# How do you solve 7( x - 3) = 2( x - 9) + 2x?

Mar 21, 2018

$x = 1$

#### Explanation:

Firstly, we would open up the bracket on one side, and to open the bracket, we would bring the outside number in;

$7 \times x = 7 x \text{ }$ and $\text{ } 7 \times - 3 = - 21$

And since we're subtracting the left side would give us

$7 x - 21$

Moving on to the right side we would firstly, open up the bracket giving us

$2 x - 18 + 2 x$

then we would sub $4 x$ from the right side because $2 x + 2 x$ gives us $4 x$, then we would take that $4 x$ and sub it to the $7 x$ giving us

$3 x - 21 = - 18$

Then we would add $21$ to the right side because were subtracting on the left side. That would give us

$3 x = 3$

and to get $x$ by itself, we would divide the $3$ from both sides giving us a final answer of........

$x = 1$