Solve equations step by step

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Use x for the unknown and / for divide, for example 3(x + 2) = 21 or (x + 1)/2 = 4.

One-step equations

• x + 3 = 7
• x + 5 = 12
• 3x = 12
• x/4 = 5
• x + 5 = 13
• x + 15 = 23
• x + 11 = 20
• x + 14 = 17
• x + 13 = 22
• x + 6 = 15

Two-step equations

• 3x + 4 = 19
• 8x + 12 = 76
• 8x + 17 = 97
• 5x + 4 = 54
• 6x + 5 = 23
• 8x + 5 = 29
• 7x + 1 = 36
• 4x + 11 = 31
• 2x + 17 = 21
• 9x + 18 = 126

Equations with brackets

• 3(x + 2) = 21
• 2(x + 7) = 20
• 3(x + 4) = 24
• 3(x + 5) = 51
• 5(x + 4) = 70
• 3(x − 2) = 30
• 5(x + 5) = 55
• 6(x − 5) = −18
• 2(x + 6) = 24
• 6(x − 3) = 18

Equations with negative numbers

• 10 − 2x = 4
• 28 − 5x = −12
• 13 − 5x = −27
• 20 − 5x = −10
• 27 − 6x = −15
• 14 − 3x = 5
• 30 − 6x = −42
• 16 − 6x = −14
• 26 − 3x = 17
• 32 − 3x = 14

Unknowns on both sides

• 5x + 3 = 2x + 12
• 8x + 2 = 6x + 12
• 7x + 7 = 4x + 16
• 7x + 8 = 4x + 23
• 5x + 7 = 4x + 12
• 7x + 15 = 5x + 25
• 6x + 4 = 3x + 34
• 9x + 14 = 3x + 44
• 6x + 12 = 3x + 24
• 6x + 1 = 5x + 13

Unknown on the bottom of a fraction

• 16 = 4/x + 4
• 9/x + 2 = 6
• 2/x + 2 = 6
• 5/x + 3 = 9
• 2/x + 9 = 12
• 3/x + 9 = 13
• 3/x + 8 = 14
• 6/x + 4 = 8
• 4/x + 9 = 12
• 12/x + 9 = 14

Equations with fractions

• (x + 1)/2 = 4
• (x + 1)/2 = (x − 3)/5
• (x + 3)/4 = 1
• (x + 5)/5 = 7
• (x + 2)/6 = 8
• (x + 4)/4 = 8
• (x − 1)/6 = 2
• (x + 7)/6 = 1
• (x − 4)/4 = 2
• (x + 7)/2 = 5

2,359 worked examples, each one checked.