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

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Question 206288: y = x + 4
3y - 5x= 6 Solve by substitution
Found 2 solutions by scott8148, checkley77:
Answer by scott8148(6628) About Me  (Show Source):
You can put this solution on YOUR website!
substituting ___ 3(x + 4) - 5x = 6

3x + 12 - 5x = 6 ___ -2x = -6 ___ x = 3

substituting ___ y = 3 + 4 = 7

Answer by checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!
y=x+4
3y-5x=6
3(x+4)-5x=6
3x+12-5x=6
-2x=6-12
-2x=-6
x=-6/-2
x=3 ans.
y=3+4
y=7 ans.
Proof:
3*7-5*3=6
21-15=6
6=6