Solve the system of equations by the substitution method

Algebra
Tutor: None Selected Time limit: 1 Day

4x-y=3

10x-3y=11

Jul 24th, 2015

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4x-y=3

y=4x-3

substituting in the second equation,

10x-3y=11

10x-3(4x-3)=11

10x-12x+9=11

-2x=2

x=-1

y=-4-3

  =-7

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Jul 24th, 2015

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