Solve Complex Single Variable Equations – Grade 8

1. Find the value of the variable in the equation by combining like terms.

3x + 4 + 2x + 5 = 34

2. Find the value of the variable in the equation by combining like terms.

1/3(x +1) – 4 = -2

3. Find the value of the variable in the equation by combining like terms.

-10 + 4x – 2x = 8 + 4x – 16

4. Find the value of the variable in the equation by combining like terms.

8(x – 1) = 4(x + 3)

5. Find the value of the variable in the equation by combining like terms.

2(9 – x) = 3(x +16)

6. Find the value of the variable in the equation by combining like terms.

8(x – 2) – 3(1 – x) = 9(x + 2) +1

7. Find the value of the variable in the equation by combining like terms.

3x – 1 = 23 – 3x 

8. Find the value of the variable in the equation by combining like terms.

-11x – 4 = -3x + 60

9. Find the value of the variable in the equation by combining like terms.

-6x + 2 = -4x + 10

10. Form the equation. find x and the length of the rectangle.