Solve the following system of equations using substitution. SHOW ALL WORK- Every step! Make sure you list your solution as an ordered pair.
y=3x+7
2x−3y=−7
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Answer:
y=3x+7----(1)
2x−3y=−7(2)
substitute (1) in (2)
2x-3(3x+7)=-7(2)
2x-9x-21=-14
-7x=-14+21
-7x=7
X=-1
substitute X value in (1)
y=3(-1)+7
y=-3+7
y=4
required ordered pair is (-1,4)
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