What is the answer to 0.7x+30=75 ?

The answer to 0.7x+30=75 is x= 450/7

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0.7x+30=75

0.7 x + 30 = 75

x = \frac{450}{7}

Decimal Notation

x = 64.28571 \dots

Solution steps

0.7 x + 30 = 75

Multiply both sides by

10

7 x + 300 = 750

Move

300

to the right side

7 x = 450

Divide both sides by

7

x = \frac{450}{7}

\frac{4 x + 5}{6} - \frac{5 x - 3}{3} = \frac{x + 3}{4}

7 x - 4 = 2 x + 16

\frac{x + 5}{8} - 2 = \frac{x - 6}{3} + 5

6.4 x + 2.3 = 47.1

x = \frac{x - 1}{2} + 2