The perimeter of the figure below is equal to 150cm. solve for x. The figure contains 6 sides and they are the following: x, x+1, x+4, x+5, x+6, x+8 X = 21

WORK:
1+4+5+6+8= 24
150 -24 = 126
126/6 = 21

what is the length of the q ongest side of this polygon?use mathematicas to explaind how you determined your answer use words symbols or both in your explanation

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

600,000,000,000, or 6e14

step-by-step explanation: