Question

Solve the following equations. Recognize your reply with words and calculations.TEST ! Please help me!! i have just 30 min left!

1) 7x + 4 - 3x - 12= 8

2) (5+3a) - (10a-15)= -22

3) 1/3 - 1/2x = 7/10x

4) 3y + 4 (7y - 2) +5= 9 (2y-3)-3 (y-72)

Answer 1

first one i think is x=4

Answer 2

a=6

Answer 3

for the second 1

Answer 4

and 4 the last 1 y=12

Answer 5

thank u!!!! <3

Answer 6

u r welcome