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Benitez
Mathematics
30 April, 16:13
X=y-1
X+2y=8
Solve each system by substituation
+5
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2
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Makaila Ware
30 April, 16:16
0
The answer is
y=3
x=2
Also, substitution is just a type of method to solve for x and y.
Tell me if you want the steps for solving it
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Lesly Whitehead
30 April, 16:27
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Since the first equation is already set up as x = use it to plug into the second equation.
x + 2y = 8
(y - 1) + 2y = 8
y - 1 + 2y = 8
3y - 1 = 8
Add 1 to both sides
3y = 9
Divide both sides by 3
y = 3
Use x = y - 1 to solve for x
x = 3 - 1
x = 2
(2,3)
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