Order of operations: the rules of which calculation comes first in an expression.
They are: PEMDAS
<span><span>Do everything inside parentheses first: () </span><span>then do exponents: x2 </span><span>then do multiplies and divides from left to right </span><span>lastly do the adds and subtracts from left to right</span></span>
Order of operations is a certain rule found in mathematics. Also known as BODMAS, the order goes Brackets any numbers or operation in brackets, Of like any power, D for divison, M miultiplication A addition and S subtraction. You must follow the order, but if there are 2 DM or 2 AS in a row, you can do it from left to right. Hope it helps :) Puffin
I think that the answer is b because if you substitute in (4,1) into x-5y=-1 you’ll get 4-5(1)=-1 which simplifies to -1=+1 which is a true statement. I hope that helped (-:
