Question

2x+10=31

2x=31-10

x=21%2

Answer 1

Olá

$\LARGE\tt{}2x + 10 = 31 \\ \LARGE\tt{}2x = 31 - 10 \\ \LARGE\tt{}2x = 21 \\ \LARGE\tt{} \\ \\ {\large\boxed{\boxed{  { \LARGE \tt x = \\ \\ \red{\dfrac{21}{2}} }}}}$

$\LARGE\tt{}2x = 31 - 10 \\ \LARGE\tt{}2x = 21 \\ \\ {\large\boxed{\boxed{  { \LARGE \tt x = \ \\\blue{\frac{21}{2}} }}}}$

$\LARGE\tt{}x = 21\%2 \\ \\ \LARGE\tt{}x = \dfrac{21}{100} \times 2 \\ \\ \LARGE\tt{}x = \frac{21}{\cancel{100}} \times \cancel{2} \\ \\ {\large\boxed{\boxed{  { \LARGE \tt x = \\ \pink{\dfrac{21}{50}}}}}}$

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