7(6+d)=49 Solve for d.
A:d=7
B:d=-1
C:d=-7
D:d=1
1 answer:
Answer: d = 1
Step-by-step explanation:
First distribute the 7 to each term of (6 + d) = 42 + 7d = 49 now subtract 42 from both sides which = 7d = 7. Divide by 7 = 7d/7 = 7/7 = d = 1
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