Question

i have 3 questions since i already finish but i don't want to fail it. Please make sure your right and I'm right as well.

1.) solve for x
4(x-b)+x
A.)b=4/3x
B.)b=3/4x
C.)x=4/3b
D.)x=3/4b <---

2.) solve for y, then find the value of y when given x=-2
6x=7-4y
A.)-12<----
B.)7/4
C.)19/4
D.)24

3.) solve for H
A=1/2bh

A.)2a/b=h
b.)2a=b/h<----
c.)h=1/2ab
h=2ab

All of the answers i pick have a arrow pointing at them and the ones with a / between them mean fraction.

Answer 1

2 is wrong should be 19/4
3 is wrong should be h = 2a/b

Answer 2

1 is correct by the way

Answer 3

work for 2 :
6*-2 = -12
-12 = 7 - 4y
-12-7 = -4y
-19 = -4y
19/4 = y

work for 3:
a = bh/2
2a = bh
2a/b = h

Answer 4

thank u very much