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Svetllana [295]
3 years ago
8

Y=-2x+6 3y-x+3=0 Solving systems using substitution

Mathematics
1 answer:
Murljashka [212]3 years ago
5 0

You can "plug in" the value for y from the top eq in the bottom one:

3(-2x+6) - x + 3 = 0

Simplify:

-6x + 18 - x + 3 = 0

-7x + 21 = 0

-7x = -21

x = 3

y = -2*3+6 = 0

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