3 years ago

4(3r+2)+3r=-10? help please confused

Mathematics

2 answers:

lakkis [162]3 years ago

3 0

$4(3r+2)+3r=-10\\
12r+8+3r=-10\\
15r=-18\\
r=-\frac{18}{15}=-\frac{6}{5}$

Norma-Jean [14]3 years ago

3 0

$4(3r+2)+3r=-10\ \ \ \ \ |omit\ bracke\\\\12r+8+3r=-10\ \ \ \ \ \ \ |subtract\ 8\\\\12r+3r=-10-8\\\\15r=-18\ \ \ \ |:15\\\\r=-\frac{18}{15}=-\frac{6}{5}=-1\frac{1}{5}$

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4(3r+2)+3r=-10? help please *confused*

4(3r+2)+3r=-10? help please confused