Question

-4(7j+2) = 10

Urgent question, please! How do I know I start to solve the above by distributing it, and not dividing the -4 from both sides? How do I know?
Please answer! Thank you.

Answer 1

You would know when to distribute or divide when the numbers seem easy. For example 7/-4 will stay a fraction so it’s a bit harder to solve. Whereas 4/2 is =2 so it’s easier to solve. In this case you should distribute

-4(7j+2)=10
-28j-8=10
-28j=18
J=-18/28

Answer 2

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