Solve the system of equations: 4x−y=11 6x−2y=13

x=7,y=4.5

Step-by-step explanation:

ok so first you do 4x-y=11,6x-2y=13

then you have to eliminate something

so the easiest one is to multiply the y by -2

the reason why you have to multiply by -2 is because positive cancels out a negative

when you do that you get

x=7

  then you plug in the x into one of the equations. the end was that y=9/2 or

y=4.5

just so the first person can get the points-

x = -3

y = -18

step-by-step explanation:

to solve by substitution, substitute one variable and solve for the other. then substitute again to find the remaining variable.

x-1/3(3x-9) = -3 since y=3x-9 substittute y.

x-1/3(3x-9)=-3

x + x +3 = -3

2x+3=-3

2x+3-3= -3-3

2x=-6

x=-3

substitute again into y=3x-9

y=3(-3)-9

y=-9-9

y=-18

step-by-step explanation: