4 years ago

I need help with question 5 and its solve by subtitution

Mathematics

1 answer:

Bingel [31]4 years ago

4 0

Y = 3x + 15
y = 2x + 8

3x + 15 = 2x + 8
-2x -2x
——————-
x + 15 = 8
-15 -15
—————-
x = -7

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