Question

1) Resolva a equação do 1 grau.

a) x+2x+3x= 60

b) 8x-2x-600=0

c) x-5=0​

Answer 1

$\sf Veja~Abaixo$

Calculo da A)

$\large\boxed{\begin{array}{lr} \large \sf \:x+2x+3x= 60 \\ \\ \large \sf \:6x=60 \\ \\ \large \sf \:x=\dfrac{60}{6} \\ \\ \boxed{ { \orange{\large \sf \:x=10 }}} \: \end{array}}$

Resposta:

10

Calculo da B)

$\large\boxed{\begin{array}{lr} \large \sf \:8x-2x-600=0 \\ \\ \large \sf \:6x-600=0 \\ \\ \large \sf \:x=\dfrac{60}{6} \\ \\ \boxed{ { \yellow{\large \sf \:x=100 }}} \: \end{array}}$

Resposta:

100

Calculo da C)

$\large\boxed{\begin{array}{lr} \large \sf \:x-5=0 \\ \\ \large \sf \:x-5+5=0+5 \\ \\ \large \sf \:x=5 \end{array}}$

Resposta:

5

Bons estudos =)

Answer 2

Oi Boa Noite Adriano !

a) $x = 10$

Cálculo:

$\times \: + \: 2 \times \: + \: 3 \times = 60$

$6 \times = 60$

$\times = \frac{60}{6}$

$\times = 10$

b) $\times = 100$

Cálculo:

$8 \times - \: 2 \times - \: 600= 0$

$6 \times - \: 600 = 0$

$\times = \frac{60}{6}$

$\times = 100$

c) $\times = 5$

Cálculo:

$\times \: - \: 5 = 0 \\ \times \: - \: 5 \: + \: 5 = 0 \: + \: 5 \\ \times = 5$