Twice the difference of a number 2 and 5 is ?

n= 4.5

Step-by-step explanation:

The equation is:2(n-2)=5

Step 1- You need to do the parentheses.

The new equation is:

2n-4=5

Step 2-Next you add 4 to both sides of the equal sign.

The new equation is:

2n=9

Step 3- Now you divide by 2 into both sides and get the answer.

n=4.5

15

step-by-step explanation:

we are given the following expression and we are to solve it and find the product:

-13 × (-5)

solving the given expression in the standard order of solving a mathematical expression, beginning with the opening of brackets and then multiplying the terms and changing their signs.

-3 × -5 = 15 (answer is positive because when negative is multiplied with negative, it gives a positive answer)