What is the answer to 0.4x+3.9=5.78 ?

The answer to 0.4x+3.9=5.78 is x= 47/10

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0.4x+3.9=5.78

0.4 x + 3.9 = 5.78

x = \frac{47}{10}

Decimal

x = 4.7

Solution steps

0.4 x + 3.9 = 5.78

Multiply both sides by

100

40 x + 390 = 578

Move

390

to the right side

40 x = 188

Divide both sides by

40

x = \frac{47}{10}

x, 3 x - 4 y + 8 = 0

\frac{x}{2} + \frac{x}{3} + \frac{x}{4} = 26

a, y = a (0.5)^{\frac{t}{h}}

- 8 (x + 1) + 2 x = - 32

x, 4 x - 12 y = 0