Question

-2(7-y)+4=-4 please help i have no clue

Answer 1

-3

Explanation:

-2(7-y)+4=-4

distribure

-14 + 2y + 4 (it becomes a +2 because 2 negatives become a positive).

inverse carry over

-4 - 4 = -8 +14 = 6 / -2 =-3

Answer 2

-2(7-y)+4=-4

Multiply the bracket by -2

(-2)(7)(-2)(-y)+4=-4

-14+2y+4=-4

Combine like terms:

-14+4+2y=-4

-10+2y=-4

Move -10 to the other side. Sign changes from -10 to +10.

-10+10+2y=-4+10

2y=6

Divide by 2 for both sides.

2y/2=6/2

Cross out 2 and 2, divide by 2 and then becomes: 1*1*y=y

y=3

Answer : y=3