Question

8x+21=3 need the answer please

Answer 1

Answer:

$x=-\frac{9}{4}$

Step-by-step explanation:

Step 1:  Subtract 21 from both sides

$8x + 21 = 3$

$8x + 21 - 21 = 3 - 21$

$8x = -18$

Step 2:  Divide 8 from both sides

$8x = -18$

$\frac{8x}{8}=-\frac{18}{8}$

$x=-\frac{9}{4}$

Answer:  $x=-\frac{9}{4}$