make a design or sketch plan of a rectangular wooden chair that can be made out of a 1/2" x 10" x 5' wood and 2" x 3" x 8' wood. Using the design or sketch plan, formulate one problem that involves Quadratic Equations, then solve in two different ways.

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

the answer is (-4,-4)

hope this ! : d

step-by-step explanation:

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