SOLUTION: How would you solve y=-2x+3 and x+y=4? Using the Substitution method.

Question 941288: How would you solve y=-2x+3 and x+y=4? Using the Substitution method.
Answer by TimothyLamb(4379) (Show Source): You can put this solution on YOUR website!
y=-2x+3
x+y=4
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put the system of linear equations into standard form
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2x + y = 3
x + y = 4
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copy and paste the above standard form linear equations in to this solver:
https://sooeet.com/math/system-of-linear-equations-solver.php
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solution:
x = -1
y = 5
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now solve by substitution:
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x + y = 4
x - 2x + 3 = 4
-x = 1
x = -1
y = -2(-1) + 3
y = 2 + 3
y = 5
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solution by substitution:
x = -1
y = 5
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