Pearson Algebra 1 Common Core, 2011
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Pearson Algebra 1 Common Core, 2011 View details
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Exercise 6 Page 157

You can solve for the variable by using cross products.

11

Practice makes perfect

To solve the proportion, we will start by multiplying both sides of the equation by 8 to eliminate the fractions.

5n+1/8=3n-5/4
5n+1/8* 8=3n-5/4* 8
(5n+1)*8/8=(3n-5)* 8/4
5n+1=(3n-5)* 2

From here, we will continue solving for n by using the Distributive Property and the Properties of Equality.

5n+1=(3n-5)* 2
5n+1=6n-10
- n+1=-10
- n = - 11
n=11