ÁLGEBRA - De Mapa Mental

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ÁLGEBRA

2x – 3 = 5

2x = 5 + 3

x = 8 / 2

x = 4

3x – 1 = x + 9

3x – x = 9 + 1

2x = 10

x = 10 / 2

x = 5

5 – x = 2

5 – 2 = x

3 = x

\(\frac {3x-1}{5}\) = 4

3x – 1 = 4 * 5

3x = 20 + 1

x = 21 / 3

x = 7

\(\frac {3x}{2}\) + 4 = 7

3x + 4*2 = 7*2 . . . . . .\(\frac {3x}{2}\) = 7 – 4

3x = 14 — 8 . . . . . . . . 3x = 3 * 2

x = 6 / 3 . . . . . . . . . . . 3x = 6

x = 2 . . . . . . . . . . . . . . x = 6 / 3 = 2

\(\frac {2x–1}{3}\) +\(\frac {x}{2}\) = 9

2· (2x–1) + 3 · x = 9 · 6

4x – 2 + 3x = 54

7x = 54 + 2

x = 56 / 7 = 8