Given the system of equations:

6x+y=9.7

4x+2y=9.8

What is the value of x?

I used the substitution method.

The first equation is what I used: y=-6x+9.7

So I plugged in y in the second equation.

4x + 2 (-6x+9.7) = 9.8

4x-12x+19.4=9.8

Combine like terms

-8x+19.4=9.8

Subtract 19.4 on both sides

-8x=-9.6

Divide by - 8 on both sides and you get

x=1.2

If you wanted to find y use either equation and plug in for x with the value of x!