The electronics store says the size of a new television is 51 inches, meaning that 51 inches is the distance from one corner of the television screen to the opposite corner. The television is 24 inches tall. How wide is the television?

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step-by-step explanation:

8^1/3=2

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