1. If x/5 - 3 = 9 then x = 20 2. Solve: 3x/4 + 9 = 21 then x = 12 3. If 2x/7 - 5 = 2 then x = 14

1. Practice: Equations with fractions Practice again: Equations
x
1. If − 3 = 9 then x = ____
5 x
1. If − 5 = 3 then x = ___
5
3
2. Solve: x + 9 = 21
4 5
2. Solve: x + 20 = 0
4
2
3. If x − 5 = 2 then x =
7 2
3. If x + 8 = 1 then x =
49 2 5
A. B. 45 2
2 49 A. B.
− 21 −2 2 45
C. D. − 35 −2
2 21 C. D.
2 35
4. Solve each equation below:
4. Solve each equation below:
4 2
A. x + x = 9 _____ 5 1
3 3 A. x+ x = 4 _____
3 3
2 2
B. + 5x = _____
3 3 1
B. x+5 = 8 _____
3
1 4
C. 4 x − = _______ 6
2 3 C. x − 3 = 1 _______
7
5. Solve for x: 5 x + 10 = 8
2 −2 5. If 2 x − 4 = 10 then find the
A. B. value of x − 2 .
5 5
18 − 18
C. D.
5 5
a
6. Solve: = 12
6
3 1
7. Solve: x+ =3
5 5
9
8. Solve: 2 x − 5 =
2

2. Practice Thrice! Equations Quiz : Equations
2 x
1. If x + 1 = 9 then x = ____ 1. If − 9 = 2 then x = ____
5 5
5 3
2. Solve: x − 5 = 30 2. Solve: x = 21
3 7
3. If x + 5 = 1 then x = 8
3. If x = 80 then x =
5
A. 6 B. -4 A. 50 B. 10.625
C. –6 D. 4 C. 128 D. 400
4. Solve each equation below: 4. Solve each equation below:
A. x + x = 4 _____ A. 8 x + x = 72 _____
11 1
B. x + 6 = 28 _____ B. x − 1 = −8 _____
3 3
2 3
C. x + 3 = 1 _______ C. x − 6 = 1 _______
7 7
5. If 7 x − 8 = 78 then find the 5. If 2 x − 12 = 10 then find the
value of 14 x − 16 . value of x − 6 .
1 1
6. 4 x − =
2 2
1
a. x=4 b. x =
4
1
c. x=8 d. x =
8