Question

) Calcule a raiz ou solução das seguintes equações:

5x + 65 = 90

60 + 13x = 3x

11(y + 2) – 3 = 63

x/3 + x/2 = 10

Answer 1

Resposta:

5x + 65 = 90

$5x=90-65\\5x=25\\\\x=\dfrac{25}{5}\\\\\boxed{x=5}$

60 + 13x = 3x

$13x-3x=-60\\10x=-60\\\\x=\dfrac{-60}{10}\\\\\boxed{x=-6}$

$11y+22=63+3\\11y=66-22\\11y=44\\\\y=\dfrac{44}{11}\\\\\boxed{x=4}$

x/3 + x/2 = 10

$\dfrac{x}{3}+\dfrac{x}{2}=10\\\\\dfrac{2x+3x=60}{6}\\\\5x=60\\\\x=\dfrac{60}{6}\\\\\boxed{x=10}$

Explicação passo-a-passo:

Espero ter ajudado.