-15m -30 = -12m +6
3m = 36
m= 36/3 =12
Answer:

Step-by-step explanation:
<em>thinked</em><em> </em><em>number</em><em> </em><em>=</em><em> </em><em>x</em>
<em>multiply</em><em> </em><em>by</em><em> </em><em>3</em>
<em>
</em>
<em>add</em><em> </em><em>4</em><em> </em>
<em>
</em>
<em>square</em><em> </em><em>the</em><em> </em><em>result</em>
<em>
</em>
<em>hope</em><em> </em><em>this</em><em> </em><em>helps</em>
<em>brainliest</em><em> </em><em>appreciated</em>
<em>good</em><em> </em><em>luck</em><em>!</em><em> </em><em>have</em><em> </em><em>a</em><em> </em><em>nice</em><em> </em><em>day</em><em>!</em>
The Answer Is 18
Order Of Operation laws says that you must do the parentheses first, 45x2.
45x2=90
The next thing you must do is divide 90 by 10 since division is before addition.
90/10=9
Now combine like terms.
9+9=18
Say x is the number of weeks until their money is equal. Then, we can set up an equation.
400 + 25x = 250 + 75x
Subtract 250 from both sides
150 + 25x = 75x
Subtract 25x from both sides
150 = 50x
Divide by 50 on both sides
3 = x
That means the answer is 3 weeks.