HELP PLEAAASSSEEE!!!!​ solve the system of equations 7x−3y=20y=5x−4​x=y=

Answer:x=-1 and y=-9Step-by-step explanation:So the equations are 7x-3y=20 and y=5x-4the second equation gives you a value that you can substitute in for ysub for y in the first equation:7x-3(5x-4)=20distribute the 3 to the values in the parenthesis7x-15x+12=20combine like terms-8x+12=20subtract 12 from both sides-8x=8divide both sides by -8x=-1Now that you have your x value you should sub it into one of the equations to get the y value, we will sub it into the first equation7(-1)-3y=20multiply-7-3y=20add 7 to both sides-3y=27divide both sides by -3 y=-9Substitute the values in to check your work7(-1)-3(-9)=20 -7+27=2020=20correct, now the other equation(-9)=5(-1)-4-9=-5-4-9=-9correct