7(3r - 1) - (r + 5) = -52
Please step by step help
2 answers:
Answer:
r = -2
Step-by-step explanation:
7(3r - 1) - (r + 5) = -52 distribute (the - sign too)
21r - 7 + -r - 5 = -52 add/ subtract like terms
20r - 12 = -52 subtract -12 and added to -52
+12 +12
20r = -40 divide by 20
20r/20 = -40/20
r = -2
7(3r-1)-(r+5)=-52
21r-7-r-5=-52
21r-r-5-7=-52
20r-12=-52
Add 12 to both sides
20r=-40
Divide by 20
r=-2
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Step-by-step explanation:
