because you undo the operation in the equation= to undo subtraction you add
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Parenthesis, Exponents, Multiplication, Division, Addition, Subtraction
in an equation like y=5x+3 the 3 would be the y-intercept
BODMAS would say that addition is before subtraction. There is a main code "DMAS", which prove that: D:Divide M:Multiplication A:Addition S:Subtraction It proves that Addition is before Subtraction. HOPE U LIKE THAT:)
Pemdas was created, because it is the order in which you can solve problems. (order of operation) Parenthesis Exponents Multiplication Division Addition Subtraction If we didn't have Pemdas everything would be all mixed up, and the answer would be wrong. Pemdas is the rules of order in which how to solve a problem.
The fact family of 0, 0, and 4 would include the addition and subtraction equations: 0 + 0 = 0, 0 + 4 = 4, and the subtraction equation: 4 - 0 = 4.