1.
16x − 4x = -48
16x-4x=12x
12x= -48
X= 4
2.
7m − 5 − 13m = 25
7m – 13m =
-6m
-6 m -5 = 25
3.
. 12.25 = 0.5q + 3.75
4.
2(2x−4)+x=7
(2·2x−2·4)+x=7
(4x−8)+x=7
4x−8+x=7
4x+x−8=7
5x−8=7
(5x−8)+8=7+8
5x−8+8=15
5x 5 =15
x= 3·5/5
x=3
5.
8 = 3(3x + 8) – x
3x +8 = 11
8=3(11)-x
11x3 =33
33- 8= 25
25= x
6.
2
7. 13.75 = 0.25b + 0.50
Reorder the terms:
13.75 = 0.50 + 0.25b
Solving
13.75 = 0.50 + 0.25b
Move all terms containing b to the left, all other terms to the right.

Add '-0.25b' to each side of the equation.
13.75 + -0.25b = 0.50 + 0.25b + -0.25b
Combine like terms: 0.25b + -0.25b = 0.00
13.75 + -0.25b = 0.50 + 0.00