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4 votes
X+y=8 solve by substitution
and
Y=3x with substitution too

User Proxytype
by
3.7k points

2 Answers

7 votes

Answer:

x = 2, y = 6

Explanation:

x + y = 8

y = 3x

if y = 2

2 = 3x

2 = 6

2 + 6 = 8

User Ville Myrskyneva
by
3.4k points
4 votes

Answer:

x=2

Explanation:

Convert the Y to 3x since we know that y=3x.

You would get x+3x=8.

Add the x and 3x to get 4x

Then, you would get 4x=8.

Divide by 4 on both sides to get x=2.

User Chintan Rajvir
by
3.6k points