Question

06 - Resolva as seguintes equações:


a) x-3 = 7


b) 3x = 12


c) 6x-10 = 2x+14

​

Answer 1

a) x - 3 = 7

x = 7 + 3

x = 10

b) 3x = 12

x = 12/3

x = 4

c) 6x - 10 = 2x + 14

6x - 2x = 14 + 10

4x = 24

x = 24/4

x = 6

Answer 2

$\begin{gathered} \begin{gathered} \large \: \boxed{ \begin{array}{r}{ \sf \underline{Quest\tilde{a}o~A}} \\ { \sf x - 3 = 7} \\ { \sf x = 7 + 3} \\ { \sf x = 10} \end{array}}\end{gathered} \end{gathered}$

$\begin{gathered} \begin{gathered} \large \: \boxed{ \begin{array}{r}{ \underline{ \sf{Quest\tilde{a}o~B}}} \\ { \sf 3x = 12} \\ {\sf x = \dfrac{12}{3} } \\ \\ {\sf x = 4}\end{array}}\end{gathered} \end{gathered}$

$\begin{gathered} \begin{gathered} \large \: \boxed{ \begin{array}{r}{ \underline{ \sf{Quest\tilde{a}o~C}}} \\ { \sf 6x - 10 = 2x + 14} \\ { \sf 6x - 2x = 14 + 10} \\ { \sf 4x = {24} } \\ { \sf x = \dfrac{24}{4} } \\ \\ { \sf x = 6}\end{array}}\end{gathered} \end{gathered}$