Question

1°)encontre o valor de X nas equação abaixo:

a) 5×-12=8+×​

Answer 1

$5x-12=8+x$

$5x-x=8+12$

$4x=20$

$x=\frac{20}{4}$

$x=5$

Answer 2

$\large\begin{array}{l}\mathtt{5x-12=8+x}\\\mathtt{5x-x=8+12}\\\mathtt{4x=20}\\\mathtt{x=\dfrac{20}{4}}\\\\\boxed{\mathtt{\red{x=5}}}\end{array}$