Answer:
figure it out your self stop having other people do your work for you
Step-by-step explanation:
Hey there! :)
Answer:
x = 12.
Step-by-step explanation:
Given:

Cross multiply to solve for x:
3 · 20 = 5 · x
60 = 5x
Divide by 5:
12 = x.
The product is equal to zero if one of the factors is equal to zero.
Therefore:

So represent missing number with x
x means unknown so
x+-1=+1
adding a negative means subtraction
x-1=1
you can do anything to an equation as long as you do it to both sides
add 1 to both sides
x+1-1=1+1
x+0=2
x=2
the number is 2
Answer:
8x^2 with 40 as the numerator
Step-by-step explanation: