Answer:
Step-by-step explanation:
x=-1
Factor out the x and solve
x = -1
<em><u>Add like terms (3 and 7, 2x and -10x and -x)</u></em>
x + 3 + 7 = 2x - 10x - x
x + 10 = -9x
<em><u>Subtract x from both sides:</u></em>
10 = -10x
<em><u>Divide both sides by -10:</u></em>
-1 = x
hope it helps.
c
because it has an equal sign
So basically you add x with 9 and you get 9x
