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mr_godi [17]
3 years ago
9

7. the perimeter of a triangle is 80cm. write and simplify an equation to solve for x.​

Mathematics
1 answer:
Nady [450]3 years ago
3 0

Answer:

X = 18

Step-by-step explanation:

(x+3)+(x+3)+(3x-16) = 80

5x-10 = 80

5x = 80+10

5x = 90

x = 90/5

x = 18

hope that helped!

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