What is the answer to 1/3 = 4/7+1/3 c ?

The answer to 1/3 = 4/7+1/3 c is c=-5/7

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1/3 = 4/7+1/3 c

\frac{1}{3} = \frac{4}{7} + \frac{1}{3} c

c = - \frac{5}{7}

Decimal Notation

c = - 0.71428 \dots

Solution steps

\frac{1}{3} = \frac{4}{7} + \frac{1}{3} c

Switch sides

\frac{4}{7} + \frac{1}{3} c = \frac{1}{3}

Move

\frac{4}{7}

to the right side

\frac{1}{3} c = - \frac{5}{21}

Multiply both sides by

3

c = - \frac{5}{7}

4 (10 - 5 x) 2 = 49

\frac{1}{2} (x + 4) = - 12

y, 5 x - 3 y = 7

- 2 x = 32

y, 3 y + 4 x = 12