Question

5(8-7) - 7(5-8) =

Answer 1

5-7(-3)=5+21=26

Answer 2

BIDMAS
Start with what's in the Brackets, then go to the Multiplications finally do the Subtraction

Answer 3

@stats90 How did you simply get 21? Isn't it supposed to be -21?

Answer 4

5(1)-7(-3)
5+21=
26 <-- Ans

Answer 5

How did you get positive 21?

Answer 6

-7*-3=+21

Answer 7

Double Negative

Answer 8

5(1)-7(-3)=26

Answer 9

Two negative signs multiply to make a poitive
+*+ or -*- = +
-*+ or +*- = -

Answer 10

So it was. Negative 7! Ok jus to clarify if I subtract on these types of equations, it is supposed to be a negative? And what does double negative mean? 😀

Answer 11

Im not sure whats confusing you so I'll try to explain this problem abit more maybe it helps you out;
\[5(8-7)-7(5-8)\]
Solve the brackets first;
\[8-7=1\]
and
\[5-8=-3\]
Now we have;
\[(5*1)-(7*-3)\]
\[5-(-21)\]
Here is the DOUBLE Negative
\[5+21\]
Becomes POSITIVE
\[26\]

Answer 12

Got it?

Answer 13

Thank you so much.

Answer 14

<3