Write an equation to represent each relationship. Then solve the equation.

1 answer:

7 0

34. If we say "a number" is x, we can write the equations.
"The sum of a number and 4" could be written as x+4. 3 times the sum of a number and 4 can be written as 3(x+4).
When it says "is the same as", it's just saying it's equal to. So we can say that:
3(x+4)=18+x
And that's your answer to #34

36. Let's say that "a number" is n this time. "2 times a number" can be written as 2n. 2 less than 2n is just saying 2n-2. Now we can get your answer:
2n-2=n+64

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