3 years ago

Which is a way to check the answer 120 divided by 4 = 30

2 answers:

6 0

120/4=30
120=30 x 4
Move 4 to the back and switch division to multiplication.

5 0

Multiply 4 and 30. If the answer is 120, then you are correct.

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Ivan

(-3, 1)
4x-9y=-21
+-4x-3y=9
-12y= -12
y=1

4x- 9(1)= -21
4x-9=-21
+9 +9
4x= -12
x=-3

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