425 / 50 = 8,5
There you go.
Answer is 2a=120 and a=60
2a+2a+a+a=360
6a=360
a=60
2a
2(60)=120
Answer:
the third term wasn't distributed properly the -2 has to multiply by +2 = -4
Step-by-step explanation:
-5x^2y - 3xy^2 - 2(4y+2) - 2.5x^2y
-5x^2y - 3xy^2 - 8y - 4 - 2.5x^2y
-7.5x^2y - 3xy^2 - 8y - 4