- We'll have 2 solutions because this question is in 2 variables (x & r) & we need to solve for both of them.
First, let's solve for 'r'.
Multiply both sides of the equation by 4.
Swap sides so that all variable terms are on the left-hand side.
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Now, let's solve for 'x'.
Multiply both sides of the equation by 4.
Add 3 to both sides.