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OpenStudy (anonymous):
solve the system by the addition/linear combination method. be sure to check all proposed solutions. x-4y=-10 9x-5y=34
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hero (hero):
Multiply the first equation by 9 9x - 36y - 90 9x - 5y = 34 Then then subtract the second from the first to get: -31y = -124 Divide both sides by -31 to get y = -124/-31 y = 4 Now go back and find x
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