​Solve the system of equations by substitution. 5x 6y=-45, x-(1/2)y=8

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Solve the system of equations by substitution. 5x+6y=-45, x-(1/2)y=8

Oct 4th, 2015

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5x+6y=-45

 x-(1/2)y=8 

x= 8+ (1/2)y

put the value of x in 5x+6y=-45

40+ (5/2)y)+6y=-45

(5+12)/2 *y=-45 -40

17/2 *y=85

y=10

and x= 8+ (1/2)10 = 13


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Oct 4th, 2015

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