Solving a Linear Fractional Equation

MathematicsAlgebraic EquationsEasy

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$$\frac{x+10}{x-7} = \frac{8}{9}$$

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1
Step 1

Hi Illianna, let's solve this rational equation together.

Solving the Equation

2
Step 2

We start with the equation x plus ten over x minus seven equals eight over nine. To solve for x, we can use the cross-multiplication method.

$$\frac{x+10}{x-7} = \frac{8}{9}$$
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Step 3

Cross-multiplying means multiplying the numerator of one side by the denominator of the other side. This gives us nine times x plus ten equals eight times x minus seven.

$$9(x + 10) = 8(x - 7)$$
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Step 4

Now, distribute the numbers on both sides. On the left, nine times x plus nine times ten gives us nine x plus ninety. On the right, eight times x minus eight times seven gives us eight x minus fifty-six.

$$9x + 90 = 8x - 56$$
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Step 5

Our next goal is to get all the x terms on one side. Let's subtract eight x from both sides.

$$9x - 8x + 90 = -56$$

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About This Question

Subject
Mathematics
Topic
Algebraic Equations
Difficulty
Easy
Question Type
Open Ended

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