Solve x + 2x = 21 | Equatix - Math Solver

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Example

3(r+2s)=2t-4

a⋅(b-2)=3b

3(r+2s)=2t-4

a⋅(b-2)=3b

Question

$$x+2x=21$$

Solve for x

$x=7$

Steps for Solving Linear Equation

Combine $x$ and $2x$ to get $3x$.

$$3x=21$$

Divide both sides by $3$.

$$x=\frac{21}{3}$$

Divide $21$ by $3$ to get $7$.

$$x=7$$