Answer:
2
Step-by-step explanation:
4x+3−x=12x−15
<u>Combine 4x and −x to get 3x</u>.
3x+3=12x−15
<u>Subtract 12x from both sides</u>.
3x+3−12x=−15
<u>Combine 3x and −12x to get −9x</u>.
−9x+3=−15
<u>Subtract 3 from both sides</u>.
−9x=−15−3
<u>Subtract 3 from −15 to get −18</u>.
−9x=−18
<u>Divide both sides by −9.</u>
x= –18÷–9
<u>Divide −18 by −9 to get 2.</u>
x=2