tlmbryant2004 tlmbryant2004

02-05-2020
Mathematics

contestada

What is the first thing you should look for, to determine whether you are going to solve by substitution or elimination? *

a. If they have the opposite signs

b. If the numbers and variables are the same

c. If a variable is already solved for

d. If the numbers are the same

Respuesta :

mekhia109 mekhia109

02-05-2020

A. If they have opposite signs

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