Which of these shows the result of using the first

Ответ:

Robinlynn228

11.03.2022

A. 11x=55

Step-by-step explanation:

The given system of equations:

$y = 3x.....................(1)\\\2x + 3y = 55.................(2)$

When we substitute the value of y in equation (2), we get

$2x+3(3x)=55\\\\\Rightarrow\ 2x+9x=55\\\\\Rightarrow\ 11x=55$

Hence, the result of using the first equation to substitute for y in the second equation, then combining like terms is 11x=55

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