22. the graphs of the lines y = - 2x-3,
y= 1/2x + 2, and y = 1/7x + 24/7 are shown
below. the three lines intersect to form the
right triangle abc.

how is that middle school

step-by-step explanation:

answer: i'm great at algebra

~coco

step-by-step explanation:

don't give

take it once

try and try and you will not

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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