Question

what is 7x-21=x+3
need step by step

Answer 1

Answer:

$\boxed {x = 4}$

Step-by-step explanation:

Solve for the value of $x$:

$7x - 21 = x + 3$

-Take $x$ and subtract it from $7x$:

$7x - 21 - x = x - x + 3$

$6x - 21 = 3$

-Add both sides $21$:

$6x - 21 + 21 = 3 + 21$

$6x = 24$

-Divide both sides by $6$:

$\frac{6x}{6} = \frac{24}{6}$

$\boxed {x = 4}$

Thus, the value of $x$ is $4$.