Question

Question #28ac8

Answer 1

The two lines described by the equations cross at (1, 2)

Explanation:

Assuming the question asks to find where the two lines cross
or to find a common solution for the two equations

Using subtraction
Equation 1
`x + 2y = 5`

Equation 2
`3x + 4y == 11`

Multiply equation 1 by a factor of 2 to give equation 3
`2x + 4y = 10`

Subtract equation 3 from equation 2
`3x + 4y - (2x + 4y) = 11 - 10`

Simplify
`x = 1`

Substitute 1 for x in equation 1
`1 +2y = 5`

simplify
`y = 2`

Therefore the two lines described by the equations cross at (1, 2)