Solve 3x+4=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

$$3x+4=21$$

Solve for x

$x = \frac{17}{3} = 5\frac{2}{3} \approx 5.666666667$

Steps for Solving Linear Equation

Subtract $4$ from both sides.

$$3x=21-4$$

Subtract $4$ from $21$ to get $17$.

$$3x=17$$

Divide both sides by $3$.

$$x=\frac{17}{3}$$