Answer:
Step 3 is incorrect
Step-by-step explanation:
4(-1/2x + 7) + 5x = 15
-2x + 28 + 5x = 15
3x + 28 = 15
3x + 28 - 28 = 15 - 28
3x = -13
7= 16 + 3x
7-16 = 3x
-9 = 3x
x = (-9)/(3)
x = -3
Step-by-step explanation:
the explanation is above
Take key note of the dots bcz some are coloured and some aren't
-2= y-4
——
0-2
-2= y-4
——
-2
(y-4)•-2 = -2
-2y+8=-2
-2y=-10
————
-2
y=5
hope this helps