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Solve for [tex]$x$: \quad 5.6x - 1.03 = 3.3x + 1.5[/tex]

A. [tex]$x = \frac{28}{23}$[/tex]
B. [tex]$x = \frac{11}{10}$[/tex]
C. [tex]$x = 28$[/tex]
D. [tex]$x = 11$[/tex]


Sagot :

To solve the equation \(5.6x - 1.03 = 3.3x + 1.5\), follow these steps:

1. First, isolate the terms involving \(x\) on one side and the constant terms on the other side.

Start by subtracting \(3.3x\) from both sides of the equation:

[tex]\[ 5.6x - 1.03 - 3.3x = 3.3x + 1.5 - 3.3x \][/tex]

Simplifying this, we get:

[tex]\[ 2.3x - 1.03 = 1.5 \][/tex]

2. Next, isolate \(x\) by moving the constant term \(-1.03\) to the right side.

Add \(1.03\) to both sides of the equation:

[tex]\[ 2.3x - 1.03 + 1.03 = 1.5 + 1.03 \][/tex]

Simplifying this, we get:

[tex]\[ 2.3x = 2.53 \][/tex]

3. Solve for \(x\) by dividing both sides by \(2.3\).

[tex]\[ x = \frac{2.53}{2.3} \][/tex]

4. Calculate the value of the fraction.

[tex]\[ x = 1.1 \][/tex]

Comparing this result with the options provided, we can see that \(1.1\) can also be written as \(\frac{11}{10}\). Therefore, the correct choice is:

B. [tex]\(x = \frac{11}{10}\)[/tex]
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