How do you solve #\frac { ( 6c - 3.6) } { 4} = - \frac { 4} { 5}#?

1 Answer
smendyka · EZ as pi
Nov 4, 2016

#c = 2/30#

Explanation:

Step 1) Multiple each side of the equation by #20# to eliminate the fractions. This makes the equation easier to work with.
Step 2) Expand the terms in parenthesis.
Step 3) Solve for #c# while keeping the equation balanced

#(20(6c - 3.6))/4 = (-4/5)20#

#5(6c - 3.6) = -4*4#

#30c - 18 = -16#

#30c - 18 + 18 = -16 + 18#

#30c + 0 = 2#

#30c = 2#

#(30c)/30 = 2/30#

#1c = 2/30#

#c = 2/30#

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