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olganol [36]
4 years ago
8

Solve for r. –16r + 15 + 17 = 7(–3r + 16) − 5r r =

Mathematics
2 answers:
melomori [17]4 years ago
8 0

Answer:

r = 8

Step-by-step explanation:

<u>→Distribute the 7 to (-3r + 16):</u>

-16r + 15 + 17 = 7(-3r + 16) - 5r

-16r + 15 + 17 = -21r + 112 - 5r

<u>→Add like terms:</u>

-16r + 32 = -26r + 112

<u>→Add 26r to both sides:</u>

10r + 32 = 112

<u>→Subtract 32 from both sides:</u>

10r = 80

<u>→Divide both sides by 10:</u>

r = 8

shusha [124]4 years ago
4 0

Answer:

Step-by-step explanation:

-16r +15+17= 7(-3r+16)-5r

-16r+32 = -21r +112-5r

-16r +26r=112-32

10r =80

r=80/10

r=8

mark me as the brainliest and hope it helps you..

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