SOMEONE PLEASE HELP :’( Solve the equation | 4x + 7| = 9. Graph

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ThiagoLeal asked Apr 10, 2023

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SOMEONE PLEASE HELP :’( Solve the equation | 4x + 7| = 9. Graph

Mathematics
high-school

ThiagoLeal asked Apr 10, 2023

by ThiagoLeal

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1 Answer

8 votes

Answer:

-4

Explanation:

Split the problem into two cases: one positive and one negative

|4x+7| =9

4x+7=9

(4x+7) =9

Subtract 7 from both sides

4x+7 - 7 = 9 - 7

Solution

x = 1/2

x = -4

Ivan Filho answered Apr 16, 2023

by Ivan Filho

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