Respuesta :

Francis should of added 2x to both sides, that was his error.
meaghanmarques

Answer:

the bottom left

Step-by-step explanation:

yes he made a mistake

he was supposed to do:

3x = 10 - 2x

+ 2x        +2x

now 2x cancels out

5x = 10

divide 5 to both sides of the equal sign

x = 2

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