Question

What is the variable x and y equal in the equation 0.4x+0.6y=6.2?

Answer 1

The solution is (6.2,6.2)

Explanation:

we have

`0.4x+0.6y=6.2` ----> equation A

For variable x and y equal

`x=y` ----> equation B

Solve the system by substitution

substitute equation B in equation A

`0.4y+0.6y=6.2`

solve for y

combine like terms

`y=6.2`

so

`x=6.2`

therefore

The solution is (6.2,6.2)