Question

solve and check. 7x + 7 = 35 the solution is x = \square. (simplify your answer.)

Explanation:

Step1: Subtract 7 from both sides

$7x + 7 - 7 = 35 - 7$
$7x = 28$

Step2: Divide both sides by 7

$\frac{7x}{7} = \frac{28}{7}$
$x = 4$

Step3: Check the solution

Substitute $x = 4$ into the original equation:
Left side: $7\times4 + 7 = 28 + 7 = 35$
Right side: $35$
Since left side = right side, the solution is correct.

Answer:

4