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Mathematics 21 Online
OpenStudy (anonymous):

Solve the system of equations for m: 4m + 3n = 19 5m + 7n = 40 I got m=1. Am I right???

OpenStudy (anonymous):

so you eliminated n?

OpenStudy (anonymous):

That's what i got

OpenStudy (anonymous):

so what's next to find n?

OpenStudy (anonymous):

No. It just wanted to find m

OpenStudy (anonymous):

ok you found m

OpenStudy (anonymous):

yes you are correct m is equal 1

OpenStudy (texaschic101):

4m + 3n = 19 -->(7) 5m + 7n = 40 -->(-3) ---------------- 28m + 21n = 133 (result of multiplying by 7) -15m - 21n = - 120 (result of multiplying by -3) ----------------- 13m = 13 m = 1 you are correct

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