Question

find 5/63 - -6/21

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Answer 1

Step-by-step explanation:

5/63- 6/21

LCM of 63 and 21= 63

5-18/63

-13

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Answer 2

Answer:

7) choose the like terms.  5 ab , -2 ba 3 x y , 3 x 4 p q , 4 p q r

Step-by-step explanation:

7) choose the like terms.  5 ab , -2 ba 3 x y , 3 x 4 p q , 4 p q r