SOLUTION: Solve by substitution method y = x + 4 3y – 5x = 6

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Question 319307: Solve by substitution method

y = x + 4
3y – 5x = 6

Answer by rfer(16322) About Me  (Show Source):
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3(x+4)-5x=6
3x+12-5x=6
-2x=-6
x=3
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3y-5*3=6
3y-15=6
3y=21
y=7
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7=3+4