Question

How the heck do you do this?!

3.

Simplify.

10 – 5.3 • (–4 + –6)

A. 63
B. 47
C. -43
D. -47

SHOW YOUR WORK, PLEASE AND THANKS!

Answer 1

Use PEMDAS to figure out the order of operations:

Parentheses
Exponents
Multiplication/Division
Addition/Subtraction

Solve (-4 + -6) first, as this is in parentheses:


`-4 + -6 = -10`


`10 - 5.3 * -10`

Solve 5.3 * -10 next, as this is multiplication:


`5.3 * -10 = -53`


`10 - -53`

Now we can solve the equation:


`10 - -53 = 63`

The answer is 63.

Answer 2

Parentheses
Exponents
Multiplication
Division
Addition
Subtraction

Parentheses is 1st

-4 + -6 = -10

Then is multiplication.

-10 × 5.3 = -53

At last, subtract

10 - (-53) is the same as: 10 + 53

10 + 53 = 63

Your answer is 63

Hope this helps :)
.