Question 181211
Solve the system of equations by substitution.
3y-4x=-1
y-5x=-15 --> y = 5x-15
I worked it out to (4,5). Am I right?
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3(5x-15) - 4x = -1
15x-45 - 4x = -1
11x = 44
x = 4
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y = 5x-15
y = 5
You're close.