Time remaining:
solve each system of equations using substitution

label Algebra
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schedule 0 Hours
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x-3y= -13

4x +2y=4

Nov 18th, 2014

Take the first equation and solve for x:

x - 3y = -13

x = -13 + 3y

Now, substitute that into the second equation:

4x + 2y = 4

4(-13 + 3y) + 2y = 4

-52 + 12y + 2y = 4

Add 52 to both sides:

12y + 2y = 56

14y = 56

y = 4

Now, substitute y = 4 into the first equation:

x - 3y = -13

x - 3(4) = -13

x - 12 = -13

x = -1


Nov 18th, 2014

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Nov 18th, 2014
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Nov 18th, 2014
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