Combining Like Terms and Solving Test Prep AK

1. If $x+x+x+x+x+5=10+x+x+x+x$, what is the value of $x$?

ANSWER: (B)5

2. If $-y-y-y-y-(-5y)+2=26-y$, what is the value of $y$?

ANSWER: (A)12

3. If $14z + 5z +z =-15x + -39y + (-1) $ and $x=4$ and $y=1$, what is the value of $z$?

ANSWER: (E)-5

4. If $\dfrac{4x}{3}=16$ and $x^2 - 36 = -y + (-y) + 5y$, what is the value of $y$?

ANSWER: 36