MarkOfAmnael MarkOfAmnael

25-01-2017
Mathematics

contestada

y = 5x-40
y-3x=-24
(Solve the system algebraically by any method and show work)

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texaschic101 texaschic101

25-01-2017

substitution....

y = 5x - 40...so we sub in 5x - 40 in for y in the other equation

y - 3x = -24
5x - 40 - 3x = -24
5x - 3x = -24 + 40
2x = 16
x = 16/2
x = 8

y = 5x - 40
y = 5(8) - 40
y = 40 - 40
y = 0

solution is (8,0)

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