help please will medal
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Which property of equality would be used to solve the equation -3x = 252?
addition
subtraction
multipication
division
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OpenStudy (nicholausblackmon):
c
OpenStudy (nicholausblackmon):
you are multplying because x and negative 3 are so close together
OpenStudy (danjs):
divide by -3 OR
Multiply by -1/3
OpenStudy (anonymous):
Multiplication
OpenStudy (anonymous):
Whoops sorry you would divide! -3x/-3 cancels it out so x=252/-3
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OpenStudy (anonymous):
remember PEMDAS? in properties of equalities, it becomes SADMEP (point is it's reverse). So you use Addition/Subtraction property first. then multiplication/division property
OpenStudy (anonymous):
X X X X X X X
OpenStudy (nicholausblackmon):
SOLVE! OHHHH
OpenStudy (nicholausblackmon):
then it is division
OpenStudy (nicholausblackmon):
D
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OpenStudy (danjs):
multiplication and division are the same process. Just as Addition and subtraction are the same process -3 = +(-3)