What is the answer to 0.5x+4+0.9x=x+5 ?

The answer to 0.5x+4+0.9x=x+5 is x= 5/2

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0.5x+4+0.9x=x+5

0.5 x + 4 + 0.9 x = x + 5

x = \frac{5}{2}

Decimal Notation

x = 2.5

Solution steps

0.5 x + 4 + 0.9 x = x + 5

Group like terms

0.5 x + 0.9 x + 4 = x + 5

Add similar elements:

0.5 x + 0.9 x = 1.4 x

1.4 x + 4 = x + 5

Multiply both sides by

10

14 x + 40 = 10 x + 50

Move

40

to the right side

14 x = 10 x + 10

Move

10 x

to the left side

4 x = 10

Divide both sides by

4

x = \frac{5}{2}

2 (3 x - 2) - (x + 3) = 8

(x - 3)^{2} - (x - 4)^{2} = 3

4.2 (5 x - 7) - 2.5 (2 - 4 x) = 120

\frac{x}{2} - \frac{6 - x}{4} = x + 1

x, x y^{2} - x + 3 y^{2} + 1 = 0