Question

5) Qual a solução de Equação?
x - x -2x=-50?
_ _
4 3​

Answer 1

$\mathsf{\dfrac{x}{4}-\dfrac{x}{3}-2x=-50}$

Vamos multiplicar toda a equação por 12.

$\mathsf{12\cdot\dfrac{x}{4}-12\cdot\dfrac{x}{3}-12\cdot2x=-50\cdot12}\\\mathsf{3x-4x-24x=-600}\\\mathsf{-25x=-600\cdot(-1)}\\\mathsf{25x=600}\\\mathsf{x=\dfrac{600}{25}}\\\huge\boxed{\boxed{\boxed{\boxed{\mathsf{x=24\checkmark}}}}}$