Answer:
13x+13y
Step-by-step explanation:
(combine like terms)
8x+5x=13x
7y+4y+2y=13y
hope this helped you!
Answer:
a
Step-by-step explanation:
(3x-14)+9x=90, thus,
((3x-14)+9x)+90=180
90+90=180
You would have to solve for x the plug in the answer for c into the next equation to find your answer
Answer:
Step-by-step explanation: