Question

5 + 2 ( x - 1 ) - 3 ( 1 - x ) = 4 + 5 ( 2 x - 3 )

Answer 1

Resposta passo a passo:

5 + 2 ( x - 1 ) - 3 ( 1 - x ) = 4 + 5 ( 2x - 3 )

5 + 2x + 2 ( - 1 ) - 3 ( 1 ) - 3 ( - x ) = 4 + 5 ( 2x ) + 5 ( - 3 )

5 + 2x - 2 - 3 + 3x = 4 + 10x - 15

5 - 2 - 3 + 3x + 2x = 4 - 15 + 10x

0 + 5x = 4 - 15 + 10x

5x = 4 - 15 + 10x

4 - 15 + 10x = 5x

4 + 10x - 5x = 15

4 + 5x = 15

5x = 15 - 4

5x = 11

x = 11/5 ← Fração.

x = 2,2 ← Decimal.