-17+2(-3)^2
-17+2(9)
-17+18
1
Answer:
x=30
Step-by-step explanation:
x+2x+3x=180
6x=180
x=180/6=30
X = 13
( x + 4) / 51 = (2x - 7) / 57
585 = 45x
585/45 = 45x/45
x = 13
-1 and 1/3 because you convert to a regular fraction and get (32/9)/(-8/3), then you flip the fraction and multiply