Question

Qual é o valor de x na equação : 2x + 3 = 15 ?

Answer 1

Resposta:

2x +3 = 15

2x = 15 - 3

2x = 12

x = 6

Answer 2

$\Box \ \ \boxed{\begin{array}{l}\sf 2x+3=15 \end{array}}\\\\\\\\\Box \ \ \boxed{\begin{array}{l}\sf 2x=15-3 \end{array}}\\\Box \ \ \boxed{\begin{array}{l}\sf 2x=12 \end{array}}\\\Box \ \ \boxed{\begin{array}{l}\sf x=\frac{12}{2} \end{array}}\\\\\\\Box \ \ \boxed{\begin{array}{l}\sf x=6 \ \ \checkmark \end{array}}$

Prova Real;

obs;

Na prova real sempre terá que dar 0

caso contrario está errado;

$\Box \ \ \boxed{\begin{array}{l}\sf 2x+3=15 \end{array}}\\\\\\\Box \ \ \boxed{\begin{array}{l}\sf 6+6+3=15 \end{array}}\\\Box \ \ \boxed{\begin{array}{l}\sf 12+3=15 \end{array}}\\\Box \ \ \boxed{\begin{array}{l}\sf 15=15 \end{array}}\\\Box \ \ \boxed{\begin{array}{l}\sf \rightarrow \ =15-15 \end{array}}\\\Box \ \ \boxed{\begin{array}{l}\sf \rightarrow \ = \boxed{\begin{array}{l}\sf 0 \ \checkmark \end{array}}\end{array}}$

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