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Radda [10]
3 years ago
9

Solve the system of equations by substitution: y = x - 2

Mathematics
1 answer:
gizmo_the_mogwai [7]3 years ago
4 0

Step-by-step explanation:

y = x - 2

x + y = 12

Substitute the first expression for y into the second equation.

x + (x - 2) = 12

2x - 2 = 12

2x = 14

x = 7

Now plug into either equation to find y.

y = 7 - 2

y = 5

So the solution is (7, 5).

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