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2 years ago

Substitute for x+2y=12 and x=y-12 PLEASE HELP !

Mathematics

2 answers:

yan [13]2 years ago

7 0

Answer:

x = -4, y = 8

Step-by-step explanation:

y - 12 + 2y = 12

=> 3y = 24

=> y = 8

x = 8 - 12

=> x = -4

34kurt2 years ago

5 0

Answer:

x = -4

y = 8

Step-by-step explanation:

We can substitute:

=> (y - 12) + 2y = 12

=> 3y - 12 = 12

=> 3y = 12 + 12

=> 3y = 24

=> y = 24/3

=> <u>y = 8</u>

Now we can substitute 8 in for y, in any of the equation given to find x:

=> x = (8) - 12

=> <u>x = -4</u>

Hope this helps!

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