Question

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The lengths of the sides of a triangle are 3x, 5x -12 and x + 20. Find the value of x so that the triangle is isoceles.

Answer 1

just set two of the equations equal to each other and solve for x for example\[3x=x+10\]

Answer 2

So would i do 3x = x + 20?

Answer 3

get all your xs on one side \[3x=x+20\]\[-x = -x\]\[2x=20\] and what do you do next?

Answer 4

you divide 2x on each side
and you get x = 10
right?

Answer 5

yes you got it

Answer 6

okay that would be the answer?

Answer 7

yes by the way you wrote the question x=10 would be the answer

Answer 8

Lol that was simple thank you!

Answer 9

np