Solve 3x-7 = 20

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Equation
Answer
x = 9

3x-7=20

Solve the equation by isolating x:

Step 1 — Add 7 to both sides

Move the constant −7 to the right side:

3x − 7 + 7 = 20 + 7

3x = 27

Step 2 — Divide both sides by 3

Isolate x by dividing both sides by the coefficient 3:

3x / 3 = 27 / 3

x = 9

x = 9

-2 2 4 6 8 10 -40 -30 -20 -10 10 (9, 0) (0, -27)

How to solve 3x-7 = 20

To solve 3x-7 = 20, isolate x by performing inverse operations on both sides — first removing constants, then dividing by the coefficient of x. This gives x = 9.

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