How I Solve Y=2x-5 And 3x+y=15?
Answer:
Equation 1:
y=2x-5
equation 2:
3x+y=15
Substituting equation 1 in equation 2:
3x+2x-5=15
Adding:
5x-5=15
Shifting 5 to the other side:
5x=15+5
Adding:
5x=20
Dividing:
x=20/5
So:
x=4
To find y:
Y=2x-5
Y=2(4)-5
Y=8-5
Y=3
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