ImPrettyNotSmart
Answered

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My brain hurts (7th grade math) 20 pts

My Brain Hurts 7th Grade Math 20 Pts class=

Sagot :

leileia25

Answer: -1.7x -3

Step-by-step explanation: add the like-terms to get the answer :)

kayleekaykay2009

Answer:

-1.7x-3

Step-by-step explanation:

-4.2x+2.5x= -1.7x

you can add these two because they both have the same variable (x in this case) you cant add a number with a variable with a whole number, its like mixing a burger with a pizza, they are completely different things.

3+(-6)= -3

if you are wondering why 6 is negative, its because in front of it there is a negative sign, even if that was meant to show that you had to subtract.

now, because (stated before) you cannot add a variable with a whole number, the equation would end up like this

-1.7x-3

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