20 - 9w = 4(15 - w) solve for w
2 answers:
Answer:
w = -8
Step-by-step explanation:
step 1:(20 - 9w) - 4 • (15 - w) = 0
step 2: -5w - 40 = -5 • (w + 8)
step 3: -5 • (w + 8) = 0
step 4: Subtract 8 from both sides of the equation :
w = -8
20-9w=4(15-w)
20-9w=60-4w
+9w +9w
20 = 60+5w
-60 -60
-40=5w
Divide by 5 on both sides to get w alone.
-8 = w
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