CPM Homework Help : INT2 Problem 7-97

Solve the equations, if possible. Be sure you have found all possible solutions. Check your work and write down the name(s) of the method(s) you used.

$(x + 4)^2 = 49$
Step (a):
$\sqrt{(\textit{x}+4)^2}=\sqrt{49}$

$3 \sqrt { x + 2 } = 12$
Hint (b):
Divide both sides by $3$ .

$\frac { 2 } { x } + \frac { 3 } { 10 } = \frac { 13 } { 10 }$
Step (c):
$\frac{2}{\textit{x}}=\frac{10}{10}$
Answer (c):
$x = 2$

$5(2x - 1) - 2 = 13$
Answer(d):
$x = 2$