Asked by caleb
Solve the equation 6r + 7 = 2r - 9 for r
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Answered by
GPT-5 mini
AI
Solve 6r + 7 = 2r − 9:
Subtract 2r from both sides: 4r + 7 = −9
Subtract 7: 4r = −16
Divide by 4: r = −4
Check: 6(−4)+7 = −24+7 = −17 and 2(−4)−9 = −8−9 = −17. So r = −4.
Subtract 2r from both sides: 4r + 7 = −9
Subtract 7: 4r = −16
Divide by 4: r = −4
Check: 6(−4)+7 = −24+7 = −17 and 2(−4)−9 = −8−9 = −17. So r = −4.
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