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Binwiederhier · Answer 1 · 2023-09-21T18:45:24+0000

D) 9x=18

Step-by-step explanation

given

$\begin{gathered} y=3x\Rightarrow equation(1) \\ 3x+2y=18\Rightarrow equation(2) \end{gathered}$

Step 1

substitute the y value from equation (1) into equation(2)

so

$\begin{gathered} 3x+2y=18\operatorname{\Rightarrow}equat\imaginaryI on(2) \\ replace \\ 3x+2(3x)=18 \\ 3x+6x=18 \\ add\text{ like terms } \\ 9x=18 \end{gathered}$

therefore, the answer is

D) 9x=18

I hope this helps you

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