Question
Real Tutor Solution
Tutor-Verified Answer
Answer
\( x = \frac{3}{2} \) or \( x = 1.5 \)
Solution
Vamos resolver a equação para \( x \):
\[
12 = 20x - 18
\]
**Passo 1:** Adicione 18 em ambos os lados da equação para isolar o termo com \( x \):
\[
12 + 18 = 20x - 18 + 18
\]
\[
30 = 20x
\]
**Passo 2:** Divida ambos os lados por 20 para encontrar o valor de \( x \):
\[
\frac{30}{20} = x
\]
\[
x = \frac{3}{2} \quad \text{ou} \quad x = 1{,}5
\]
**Resposta:**
\[
x = \frac{3}{2} \quad \text{ou} \quad x = 1{,}5
\]
Reviewed and approved by the UpStudy tutoring team
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Simplify this solution Mind Expander
To solve the equation \( 12 = 20x - 18 \), start by isolating the term with \( x \). You can do this by adding 18 to both sides, resulting in \( 12 + 18 = 20x \). Thus, \( 30 = 20x \). Now, divide both sides by 20 to find \( x \): \[ x = \frac{30}{20} = \frac{3}{2} = 1.5. \] And there you have it! The solution is \( x = 1.5 \). Try substituting \( x \) back into the original equation to verify your answer. A common mistake is overlooking the arithmetic—double-check your addition and subtraction! Always ensure you're working systematically to avoid any slip-ups along the way.
