The answer to 4r + 8 + 5 = -15 - 3r is r = -4.
Step-by-step explanation:
Given equation is;
4r + 8 + 5 = -15 - 3r
Adding 3r on both sides
[tex]4r+8+5+3r=-15-3r+3r\\7r+13=-15[/tex]
Subtracting 13 from both sides
[tex]7r+13-13=-15-13\\7r=-28[/tex]
Dividing both sides by 7
[tex]\frac{7r}{7}=\frac{-28}{7}\\r=-4[/tex]
The answer to 4r + 8 + 5 = -15 - 3r is r = -4.
Keywords: equation, division
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