SOLUTION: solve each system by substitution y=x+3 y=2x+4

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Question 119436This question is from textbook Holt Algebra 1
: solve each system by substitution

y=x+3
y=2x+4 This question is from textbook Holt Algebra 1

Answer by HyperBrain(694) About Me  (Show Source):
You can put this solution on YOUR website!
y=x+3
y=2x+4
SO,
x+3=2x+4
2x+4=x+3
2x-x+4=x-x+3
x+4=0+3
x+4=3
x+4-4=3-4
x=-1
Solving for y,
y=x+3
y=-1+3
y=2

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