PLZZZZZZ HELPPPPSolve the system of equations using the substitution method. {2x+8y=4x=β3y+5 Enter your answers in the boxes.
Question
Answer:
2x + 8y = 4x = -3y + 5
plug in the value of x, from the second equation, into the first
2(-3y + 5) + 8y = 4
-6y + 10 + 8y = 4
combine like terms
2y + 10 = 4
subtract 10
2y = -6
divide both sides by 2
y = -3
then, plug what you got for y into one of the equations
x = -3y + 5
x = -3(-3) + 5
x = 9 + 5
x = 14
Hope this helps! And yes, it's correct!
solved
general
10 months ago
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