4x = 72.divide both sides by 4x = 18
2y = 4x + 4y = 2x + 2
y= -4x-7 y=3x 3x= -4x-7 3x+4x=7 7x=7 x=1
-4x=2y-16 +16 +16 (-4x+16)=(2y) /2 /2 y=-2x+8
4x - 1 = 15 Therefore, 4x = 16 x = 16/4 Therefore, x = 4
-4x-4 equals -16. Add 4 to both sides; -4x equals -12. Divide both sides by -4; x equals 3.
16
16
Solve for Y algebraically. 4X + 8Y = 16 8Y = - 4X + 16 Y = - 1/2X + 2 graph and see that the Y intercept = 2
4x = 72.divide both sides by 4x = 18
-12 (?)
-3
4x+4y=16 y=5 4x+ 20=16 4x=-4 x=-1
2y = 4x + 4y = 2x + 2
X is 6
x = 5
y=4x-8y=2x+10Substitute (4x-8) for y in the second equation and solve for x:4x-8=2x+102x=18x=9Now solve for y:y=4(9)-8=28(9,28)