none of the answers are correct . . are you sure you wrote the equation out correctly. Please check your problem to ensure you wrote everything correctly. Otherwise, the equation is calculated as such 2x=4y-50 then insert the y value of 1-5x into the first equation 2x=4(1-5x)-50 then multiply the 4 through 2x=4-20x-50 then add 20x to each side 22x=-46 x=-46/22 then reduce - both the enumerator and denominator can be divided by 2 x=-13/11 you would then insert the x value in the second equation to determine y, but as you can see the x value is none of the answers you have.