57 + 56 = _ * 6
PLEASE HELP ME I AM AWARDING BRAINLIEST
I NEED THE ANSWER NOW

18.8333...

For me, I added 57 + 56, then divided 113 by 6, and 18.8333... was the answer I got.

Hope this helps :)

113/6 = n

Or 18.8333 = n

Step-by-step explanation:

57 + 56 = n * 6

Step 1:  Combine like terms

57 + 56 = n * 6

113 = n * 6

Step 2:  Divide both sides by 6

113 / 6 = n * 6 / 6

113/6 = n OR 18.8333 = n

it's equivalent, so we can say that its equal.

let's call the denominator x and the numerador is 18 less then denominator, x - 18.

multiply

2.x = 5.(x - 18)

2x = 5x - 90

90 = 5x - 2x

90 = 3x

x = 90/3

x = 30

so:

12

step-by-step explanation:

a triangle's   full angle is 180 degrees so 180 - 156 = 24. 24/2=12