Creativity1631 Creativity1631

11-10-2018
Mathematics

contestada

Solve for y
7y + 9 - 10y = -18
What is y simplify your answer as much as possible.

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pollywallythecat pollywallythecat

11-10-2018

y = 9

7y - 10y = -3y
bring down the 9 = -18 so

-3y + 9 = -18

9 - 9 = 0
- 18 - 9 = - 27

- 3y ÷ - 3 = y
- 27 ÷ -3 = 9

therefore y =9

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