SOLUTION: Solve the system of equations by the substitution system. y=5x+1 y=8x+2

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Question 768477: Solve the system of equations by the substitution system.
y=5x+1
y=8x+2

Answer by MathLover1(20850) About Me  (Show Source):
You can put this solution on YOUR website!
y=5x%2B1....eq.1
y=8x%2B2.....eq.2......substitute y in eq.1
_______________________
8x%2B2=5x%2B1....eq.1.....solve for x
8x-5x=1-2
3x=-1
highlight%28x=-1%2F3%29........substitute x in eq.2
y=8%28-1%2F3%29%2B2.....eq.2.....solve for y
y=-8%2F3%2B2
y=-8%2F3%2B6%2F3
highlight%28y=-2%2F3%29

+graph%28+600%2C+600%2C+-5%2C+5%2C+-5%2C+5%2C+5x%2B1%2C+8x%2B2%29+