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A/4 + 2 = 6 &' -4 = r/20 - 5 can u please help me on these two
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A/4 + 2 = 6 &' -4 = r/20 - 5 can u please help me on these two

User DeltaG
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A/4 + 2 = 6....subtract 2 from both sides
A/4 = 6 - 2
A/4 = 4...multiply both sides by 4, eliminating the 4 on the left side
A = 4 * 4
A = 16

-4 = r/20....multiply both sides by 20, eliminating the 20 on the right side
-4 * 20 = r
-80 = r
User Liky
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