Question

Evaluate this expression if r = 2, t = -7, and u = -5
3(r+u)

Answer 1

`\boxed{-9}`

Solution Steps:

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1.) Fill in the given variables into a new equation:

• 
  `r=2`

• 
  `t=-7`

• 
  `u=-5`

• 
  `3(2+(-5))`

- We do this since it gives us the missing variables, which makes it so we can solve it like any regular equation.

Equation at the end of Step 1:

• 
  `3(2+(-5))`

2.) Subtract 5 from 2:

• 
  `2-5=-3`

- We do this because we need 1 number, not 2 at the end.

Equation at the end of Step 2:

• 
  `3(-3)`

3.) Multiply 3 and −3:

• 
  `3` ×
  `-3=-9`

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Answer 2

the answer is -9

Explanation:

3(2 - 5)

6 - 15

-9