Let’s solve the equation step by step.
We are given:
>
Equation:
> $\frac{2}{3}(9x - 6) - 4 = 9x - 6$
And we are asked to find the value of:
> $3x - 2$
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Step 1: Simplify the left side
Start with:
$\frac{2}{3}(9x - 6) - 4$
Distribute $\frac{2}{3}$ into $(9x - 6)$:
- $\frac{2}{3} \cdot 9x = \frac{18x}{3} = 6x$
- $\frac{2}{3} \cdot (-6) = \frac{-12}{3} = -4$
So, $\frac{2}{3}(9x - 6) = 6x - 4$
Now subtract 4 more (from the original expression):
Left side becomes:
$6x - 4 - 4 = 6x - 8$
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Step 2: Write the simplified equation
Original equation was:
$\frac{2}{3}(9x - 6) - 4 = 9x - 6$
After simplifying left side:
$6x - 8 = 9x - 6$
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Step 3: Solve for x
Subtract $6x$ from both sides:
$-8 = 3x - 6$
Add 6 to both sides:
$-2 = 3x$
Divide both sides by 3:
$x = -\frac{2}{3}$
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Step 4: Find the value of $3x - 2$
Plug in $x = -\frac{2}{3}$:
$3x - 2 = 3 \cdot \left(-\frac{2}{3}\right) - 2 = -2 - 2 = -4$
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✔ Final Answer:
A) –4
Final Answer: A
Parent Tip: Review the logic above to help your child master the concept of sat math practice worksheet.