Solve by susbtitution method. 6x-3y-4=0 x+2y-4=0

tophergopher3wo

tophergopher3wo

Answered question

2022-09-02

Solve by susbtitution method.
6x-3y-4=0
x+2y-4=0

Answer & Explanation

Annie Wells

Annie Wells

Beginner2022-09-03Added 17 answers

x=-2y+4 would be your substitution. Now that you know what x is,plug that in wherever you see x in the other equation so you get
6(-2y+4)-3y-4=0 Now simplify your answer
-12y+24-3y-4=0 Now you can solve for y
Once you know y, plug that value into your equation and solve for x.
calcific5z

calcific5z

Beginner2022-09-04Added 2 answers

6x-3y-4=0
x+2y-4=0
x=4-2y
plug to first equation
6(4-2y)-3y-4=0
24-12y-3y-4=0
-9y=4-24
y=20/9
x=4-2(20/9)=-4/9

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