17 - Order of Operations (2) - Substitution

[Danmel2009]

Hey page four the pdf question four says 3+2(5)-(-7)= 6 but you said if you have a subtraction and a negative back to back it becomes a positive if you do that its 20

witch is it

[TwilightMaiden]

you mean 46.........................

smh

[holdon527]

can you please do this

4 + 2[6 - (-5)3] =

[redrockscc]

No problem! We start inside the big parentheses. The first thing we have to do in there is multiply the -5 times 3. That's -15, so we have:

4 + 2[6 - -15]

Inside the brackets, we have 6 - - 15 = 6+15=21. Now we have:

4 + 2[21]

Now multiply, then add:

4 + 42

44

I hope this helps!