Given: C-20= 4-3c Prove: c= 6

Mathematics · High School · Mon Jan 18 2021

Answered on

Given the equation:

c - 20 = 4 - 3c

Prove c = 6

Solution:

In order to prove the equivalent of c, we simply transpose -3c  and -20 on their opposite sides of the equation, hence it must be taken to note, that in transposing a number, the sign changes.

c - 20 = 4 - 3c

c + 3c  = 4 + 20

4c = 24

Divide both sides by 4 in order to determine the value of c.

4c/4 = 24/4

c = 6

Final answer:

c = 6