Math

Solve for both systems 4y+3x=76 and 5x - y = 50

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5x - y = 50

5x - y+y = 50+y

5x= 50+y

5x-50= 50-50+y

5x-50= y

4y+3x=76

4(5x-50)+3x=76

4(5x) (4)(-50)+3x=76

20x-200+3x=76

23x-200=76

23x-200+200=76+200

23x=276

23x/23=276/23

x=12

5x-50= y

5(12)-50= y

60-50= y

10=y