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System Of Equations Hlp

System Of Equations Hlp-example-1
User Blasco
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1 Answer

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Equation 1) 7x - 2y = -53
Equation 2) 5x - 7y = -88

Multiply equation 1 by 7, and equation 2 by 2.

1) 7(7x-2y=-53)

2) 2(5x - 7y = -88)

Simplify.

1) 49x - 14y = -371

2) 10x - 14y = -176

Subtract equations from each other.

39x = -195

x = -5

Plug in -5 for x in first equation.

7x - 2y = -53

7 (-5) - 2y = -53

Simplify.

-35 - 2y = -53

-2y = -53 + 35

Simplify.

-2y = -20

y = 10

(-5, 10)

~Hope I helped!~

User HiJump
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