Answer:
Step-by-step explanation:
200
To find 3x + 42 = 21, you have to subtract 42 from both sides of the equation.
3x + 42 - 42 = 21 - 42
3x = -21
Now, you have to divide 3 from both sides to get your desired answer.
= ![\frac{-21}{3}](https://tex.z-dn.net/?f=%5Cfrac%7B-21%7D%7B3%7D)
x = -7
The final answer is -7.
Answer:
-7y+8x
Step-by-step explanation:
-2y-x-5y+9x
Answer:
please attach the picture of figure
Step-by-step explanation: