Question

Solve the system by substitution. y=2x x+y=6 with solution

Answer 1

y = 2x
x + y = 6

x + 2x = 6

3x = 6

x = 2

y = 2x
y = 2(2)
y = 4

x = 2, y = 4

Answer 2

The solution is x=2, y=4

Explanation:

y = 2x

x+y = 6

Using substitution, we can substitute the first equation into the second equation

x + (2x) = 6

3x = 6

Divide by 3

3x/3 = 6/3

x = 2

Now we can find y

y = 2(2)

y = 4

The solution is x=2, y=4