Question

2x + 4y = 16 , 2x - 4y = 0

Answer 1

We can combine the two equations to eliminate a variable, as the coefficients for y in both equations are opposite numbers.

Combine the equations:


`4x = 16`

Divide both sides by 4 to get x by itself:


`x = 4`

Plug this value into one of the equations:


`2(4) + 4y = 16`

`8 + 4y = 16`

Subtract 8 from both sides:


`4y = 8`

Divide both sides to get y by itself:


`y = 2`

The answer is 'x = 4, y = 2'.