2.8-(3/4)c=7

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Solution for 2.8-(3/4)c=7 equation: 



2.8-(3/4)c=7

We move all terms to the left:

2.8-(3/4)c-(7)=0



Domain of the equation: 4)c!=0

c!=0/1

c!=0

c∈R



We add all the numbers together, and all the variables

-(+3/4)c+2.8-7=0

We add all the numbers together, and all the variables

-(+3/4)c-4.2=0

We multiply parentheses

-3c^2-4.2=0

a = -3; b = 0; c = -4.2;
Δ = b2-4ac
Δ = 02-4·(-3)·(-4.2)
Δ = -50.4
Delta is less than zero, so there is no solution for the equation

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