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Popular >

13=4x+21

Solution

13 = 4 x + 21

Solution

x = - 2

Solution steps

13 = 4 x + 21

Switch sides

4 x + 21 = 13

Move

21

to the right side

4 x = - 8

Divide both sides by

4

x = - 2

Popular Examples

factor 3x^5-75x^3 factor

3 x^{5} - 75 x^{3}

simplify (-sqrt(15))/3 simplify

\frac{- 15}{3}

|(x-50)/5 |>= 1.645

\frac{x - 50}{5} \geq 1.645

simplify 0-2/3 simplify

0 - \frac{2}{3}

t^{2} + 5 t - 1 = 0

Frequently Asked Questions (FAQ)

What is the answer to 13=4x+21 ?
The answer to 13=4x+21 is x=-2
Solve for x: 13=4x+21
The solution is x=-2