Question

Considere as expressões algébricas:
A= 5x +y , B= 6x = 4 e C= y + x
Resolva:
1) A + B + C
2) C + B
3) A -C= 4) B + C -A​

Answer 1

Explicação passo-a-passo:

1 ) (5x + y) + 6x = 4 + ( y + x )

( 5x + 6x + x ) + (y + y ) = 4

12x + 2y = 4

12x + 2y - 4 = 0

2 ) ( y + x ) + ( 6x = 4 )

6x + x + y = 4

7x + y = 4

7x + y - 4 = 0

3 )( 5x + y ) - ( y + x ) =

( 5x + x ) - ( y + y ) =

6x - 2x = 4x

4 ) 6x = 4 + ( y + x ) - 5x + y

-4 = -6x + ( y + x ) - 5x + y

-4 = - 12x + 2y

12x - 2y = 4

Espero ter ajudado