8x + 11 = 33 + 6x 8x - 6x = 33 - 11 2x = 22 x = 11
5x+15 = 6x-10 5x-6x = -10-15 -x = -25 x = 25
x=3 becaus: 6x=x+15 5x=15 (-x) x=3 (divided by 5)
x=4/3
6x - 3y = 6 y= 2x + 5 replace 2x + 5 for y into the first equation 6x - 3y = 6 6x - 3(2x + 5) = 6 6x - 6x - 15 = 6 0 - 15 = 6 -15 = 6 False So the system has no solution.
9x+6 = 6x+15 9x-6x = 15-6 3x = 9 x = 3
8x + 11 = 33 + 6x 8x - 6x = 33 - 11 2x = 22 x = 11
x+15+(-15)=6x+(15+(-15)=6x+(15-15)=6x+(0)=6x+0=6Add/subtract 0 from both sides,x=6
5x+15 = 6x-10 5x-6x = -10-15 -x = -25 x = 25
x=3 becaus: 6x=x+15 5x=15 (-x) x=3 (divided by 5)
x=4/3
It is: y = 5x+15
6x-x+15-9= 6x-x=5x 15-9=6 5x+6=0 5x=-6 x=-1.2
11
It works out that x = 6 and y = 3 or as (6, 3)
6x - 3y = 6 y= 2x + 5 replace 2x + 5 for y into the first equation 6x - 3y = 6 6x - 3(2x + 5) = 6 6x - 6x - 15 = 6 0 - 15 = 6 -15 = 6 False So the system has no solution.
(9,6)