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Arlecino [84]
3 years ago
8

Use substitution to solve the following system of equations. 2x + 4y = 12 AND x=y - 3

Mathematics
1 answer:
Kamila [148]3 years ago
8 0

Answer:

The solution is (0, 3)

Step-by-step explanation:

First, reduce 2x + 4y = 12 to x + 2y = 6, for easier calculations.

Next, substitute y - 3 for x in the other equation:

y - 3 + 2y = 6, or

3y = 9

Then y = 3.  Since x = y - 3 in general, x = 3 - 3 = 0 when y = 3.

The solution is (0, 3)

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{ \qquad\qquad\huge\underline{{\sf Answer}}}

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