Question

Determine as expressões algébricas equivalentes:

a) 3x + 5 - x + 1

b) x (4 - 9) + 2x - 7

c) 5 ( 2 - x ) + x + 1

d) 2 ( x - 6 ) + 3x + 5​

Answer 1

Resposta:

3x+5-x+1=0

x(3-1) +5 +1=0

x(2) +6=0

2x+6=0

x+3=0

x(4-9)+2x-7=0

x(5)+2x-7=0

5x+2x-7=0

7x-7=0

x-2=0

5(2-x)+x+1=0

10-5x +x+1=0

11+4x=0

2(x-6)+3x+5=0

2x-12+3x+5=0

5x-7=0

Answer 2

Resposta:

Explicação passo a passo:

3x+5-x+1=0

x(3-1) +5 +1=0

x(2) +6=0

2x+6=0

x+3=0

x(4-9)+2x-7=0

x(5)+2x-7=0

5x+2x-7=0

7x-7=0

x-2=0

5(2-x)+x+1=0

10-5x +x+1=0

11+4x=0

2(x-6)+3x+5=0

2x-12+3x+5=0

5x-7=0