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Alekssandra [29.7K]
2 years ago
13

Solve the following system using substitution. Remember to record your answer as (x, y).

Mathematics
1 answer:
natta225 [31]2 years ago
4 0

Answer:

You already have what you are going to substitute, just put the y values from the first equation into the second! Like this:

6x - 5(-2x - 9) = -19

Multiply it out:

6x +10x +45 = -19

Add like terms + simplify:

16x + 45 = -19

16x = -64

x = -4

take that x and put it back into the first equation!!

y = -2(-4) -9

y= 8-9

y= -1

so... your answer is (-4, -1)

hope this helps!

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