july1183 july1183

10-09-2018
Mathematics

contestada

Four times a number, subtracted from nine, is twice the number. How do I solved this?

Respuesta :

OmegaAzzy OmegaAzzy

10-09-2018

4x - 9 = 2x

Solve for x.

4x = 2x + 9

2x = 9

x = 4.5

We can plug 4.5 into the original equation to verify if it's correct.

4x - 9 = 2x

4(4.5) - 9 = 2(4.5)

18 - 9 = 9

The equation is true, and so x = 4.5

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