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3 years ago

13

Use substitution to solve the system. y=2x+113x+4y=−11

2 answers:

Komok [63]3 years ago

7 0

Substitute 2x + 11 where you see y in the second equation and solve for x.
3x + 4(2x + 11) = -11
3x + 8x + 44 = -11
11x + 44 = -11
11x = -55
x = -5
Now, substitute -5 where you see x in the first equation and solve for y.
y = 2(-5) + 11
y = -10 + 11
y = 1
The answers are x = -5 and y = 1.

frutty [35]3 years ago

4 0

C) (-3,-5) I got 100%

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