How do you solve $3 (4 x + 5) = 12$ $3(4x+5)=12$ ?

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Answer 1 · 2017-05-31T16:31:11

$x$ $x$ $=$ $=$ $\frac{7}{12}$ $7/12$

Steps:

Step 1: Take out those parentheses by mutiply 3 with the numbers inside the parentheses.

$3$ $3$ $($ $($ $4$ $4$ $x$ $x$ + $5$ $5$ ) $=$ $=$ $12 x + 5$ $12x+5$

So now, the equation will be, $12 x + 5$ $12x+5$ $=$ $=$ $12$ $12$

Step 2: Now we are going to leave $x$ $x$ by itself on one side.

$12 x + 5$ $12x+5$ $=$ $=$ $12$ $12$

$12 x$ $12x$ $=$ $=$ $12$ $12$ $-$ $-$ $5$ $5$

$12 x$ $12x$ $=$ $=$ $7$ $7$

Then, after you divide take $12$ $12$ to the other side, you will have your answer:
$x$ $x$ $=$ $=$ $\frac{7}{12}$ $7/12$

You cannot simplify it, so $\frac{7}{12}$ $7/12$ is your final answer!

I hope this helps!
All the best,
Moksha :D

How do you solve 3(4x+5)=123(4x+5)=123(4x+5)=12?