1.

\left. \begin{array} { l } { \text { The solution of the equation } 3 x + 7 = 13 \text { is: } } \\ { \text { (a) } 1 } & { \text { (b) } - 1 } & { \text { (c) } 2 } & { \text { (d) } 3 } \end{array} \right.

Answer»

3x+7 = 133x = 13-73x = 6x = 2



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