Asked by hi
how do you solve 4x-3(-1)=-9 with order of operations? I am trying to find x but am getting confused
Answers
Answered by
oobleck
You've heard of PEMDAS for evaluating expressions, right?
Well, to dig down and find the value of x, do them backwards
3x - 3(-1) = -9
add first
3x = -9 + 3(-1)
now multiply, since adds are done
3x = -9 - 3
whoa! here's another add that popped up. Do it first.
3x = -12
now divide at the end
x = -4
Well, to dig down and find the value of x, do them backwards
3x - 3(-1) = -9
add first
3x = -9 + 3(-1)
now multiply, since adds are done
3x = -9 - 3
whoa! here's another add that popped up. Do it first.
3x = -12
now divide at the end
x = -4
Answered by
hi
where did you get 3x?
and how did you change it to 3x= and then the rest of the problem instead of it being in the middle of the problem
and how did you change it to 3x= and then the rest of the problem instead of it being in the middle of the problem
Answered by
oobleck
sorry - a typo. Should have been 4x
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