How do you get from that expression to that simplified version ?

You take the x+2 (2x) then the x+3 (3x) then add them because they are like terms. (5) You didnt cancel out the 2x because its on the left side, leaving you with 2 numbers, 2x and 5. They are no longer like terms because there is no x attached to the 5. so this all leaves you with 2x+5 as the denominator.

Really hope this helps, lemme know if you need clarification :)

Good luck :))

93.8

step-by-step explanation:

lets say, first number = x

second number = 3x+7

total = 49

(x)+(3x+7)= 49

4x+7 = 49

4x = 42

x = 42/4

x= 10.5

x= 10.5

3x+7 = 3(10.5)+7 = 93.8

hope this

56.6

step-by-step explanation:

the ratio of the perimeters is equal to the scale.

the ratio of the areas is equal to the square of the scale.

34 / 20 = k

a / 19.6 = k²

substituting:

a / 19.6 = (34 / 20)²

a = 19.6 (34 / 20)²

a ≈ 56.6