CLASS 8 MATHS · LINEAR EQUATIONS IN ONE VARIABLE

Solve linear equations

Do the same thing to both sides until x is alone.

Loading practice…

Worked examples

Example 1 · level 1

Solve: 2x − 13 = -29

Show solution

2x = -29 + 13 = -16
x = -16 ÷ 2 = -8

Answer: -8

Example 2 · level 2

Solve: 8x + 15 = 87

Show solution

8x = 87 − 15 = 72
x = 72 ÷ 8 = 9

Answer: 9

Example 3 · level 3

Solve: 12x + 1 = 2x − 79

Show solution

12x − 2x = -79 − (1)
10x = -80
x = -8

Answer: -8