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What is the answer of Y and X

What is the answer of Y and X-example-1
User Joe Aspara
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1 Answer

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Answer:


\large\boxed{x=10,\ y=2\to(10,\ 2)}

Explanation:


\left\{\begin{array}{ccc}y=-2x+22&(1)\\y=3x-28&(2)\end{array}\right\\\\\text{substitute (1) to (2):}\\\\-2x+22=3x-28\qquad\text{subtract 22 from both sides}\\-2x=3x-50\qquad\text{subtract 3x from both sides}\\-5x=-50\qquad\text{divide both sides by (-5)}\\\boxed{x=10}\\\\\text{Put the value of x to (1):}\\\\y=-2(10)+22\\y=-20+22\\\boxed{y=2}

User Zaptree
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