Question

This is all I need because its 55% of my grade on this practice, please help ty.

Answer 1

Answer:

$18+2x=42$, $2+18x=42$, $42-2x=18$, $2(x+18)=42$, $x+42=18+4x$

Step-by-step explanation:

First question:

He starts with 18, gains 2 every week, and needs 42. This means the equation is $18+2x=42$.

Second question:

He starts with 2, gains 18 every week, and needs 42. This means the equation is $2+18x=42$.

Third question:

It starts with 42, loses 2 every day, and needs 18. This means the equation is $42-2x=18$.

Fourth question:

Each friend has a total bill of 18+x, there are 2 friends, and they need 42. This means the equation is $2(x+18)=42$.

The only answer left is $x+42=18+4x$, so that's the answer to the fifth problem.