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WITCHER [35]
3 years ago
9

Answer to Number 4. r-k = 15 Solve for K

Mathematics
2 answers:
Elan Coil [88]3 years ago
6 0
R - 2k = 15...subtract r from both sides
-2k = 15 - r ...divide both sides by -2
k = (15 - r) / -2 or k = -7.5 + (r/2)
ser-zykov [4K]3 years ago
4 0
K=45 20-k/15=7 subtract 20 from both sides. -k/15=3 multiply both sides by 15. -k=-45 change the signs equally on both sides. k=45
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