Question

WHOEVER WILL ANSWER FIRST I WILL MARK AS BRAINLIST Length of each side of a triangle is (x-3) cm. Its perimeter is 18 cm, find the value of x.

Answer 1

Answer:

a triangle has 3 sides.

so, (x-3) is 1/3 of 18

18/3 = 6

∴ (x-3) = 6

x = 6 + 3

∴ x = 9

Step-by-step explanation:

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Answer 2

Answer:

x=9

Step-by-step explanation:

3(x-3)=18

digits in bracket are multiplied by 3

3x-9=18

solve the equation

3x=18+9

3x=27

(get 3 on the other side:-)

x=27÷3

x=9

here u go