Solve 3x+5 = 20

Solve linear, quadratic, cubic, radical, exponential, and logarithmic equations step by step.

Equation

Answer

x = 5

3x+5=20

Solve the equation by isolating x:

Step 1 — Subtract 5 from both sides

Move the constant 5 to the right side:

3x + 5 − 5 = 20 − 5

3x = 15

Step 2 — Divide both sides by 3

Isolate x by dividing both sides by the coefficient 3:

3x / 3 = 15 / 3

x = 5

How to solve 3x+5 = 20

To solve 3x+5 = 20, isolate x by performing inverse operations on both sides — first removing constants, then dividing by the coefficient of x. This gives x = 5.