rose0753 rose0753

07-10-2020
Mathematics

contestada

What is the value of x?
(5x)
(3x + 18)º

A. x = -2.25
B. x = 2.25
Cx = 9
D. x = -9

Respuesta :

gurlthasjoe gurlthasjoe

07-10-2020

We know that 5x-3x =2x

So x(5x-3x)=x×2x

=(2x)^2

=4x^2

Which is given as 18.

X^2=18÷4

=4.5

So x=root over 4.5

Which is approximately 2.25

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