Seudónimo Seudónimo

01-01-2017
Mathematics

contestada

solve the equation 4x – 9 = 11 for x.

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royalranger royalranger

01-01-2017

4x - 9 = 11
4x = 20
x = 5

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apologiabiology apologiabiology

01-01-2017

remember: you can do ANYTHING to an equation as long as you do it to both sides

4x-9=11
add 9 to BOTH SIDES
4x+9-9=11+9
4x+0=20
4x=20
divide both sides by 4
(4x)/4=20/4
(4/4)x=5
1x=5
x=5

Answer Link

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