Mathematics: What is the solution to this equation? 5x + 9 - 3x = 18 + 15 A. x = 8 B. x = 21 C. x = 3 D. x = 12 ANSWER: D (x = 12)

What is the solution to this equation? 5x + 9

mariaaaaa69

01.09.2021

$\huge \boxed{\mathfrak{Question} \downarrow}$

What is the solution to this equation?

5x + 9 - 3x = 18 + 15

$\large \boxed{\mathfrak{Answer \: with \: Explanation} \downarrow}$

$\sf5 x + 9 - 3 x = 18 + 15$

Combine 5x and -3x to get 2x.

$\sf2x+9=18+15$

Add 18 and 15 to get 33.

$\sf2x+9=33$

Subtract 9 from both sides.

$\sf2x=33-9$

Subtract 9 from 33 to get 24.

$\sf2x=24$

Divide both sides by 2.

$\sf \: x=\frac{24}{2} \\$

Divide 24 by 2 to get 12.

$\boxed{ \boxed{ \bf \: x=12 }}$

The value of x is 12. Yes, the option you clicked is correct. D. x = 12 (✓)

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