Siara is baking biscuits for a bake sale. Each batch makes 75 biscuits, and her friend gives her another 60 biscuits. She ends up with 360 biscuits total for the bake sale. Use algebra to solve for how many batches she made.(1 point)
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Let x be the number of batches Siara made.
The number of biscuits made from x batches is 75x.
Her friend gave her another 60 biscuits, so the total number of biscuits is 75x + 60.
The problem states that the total number of biscuits is 360: 75x + 60 = 360.
Subtract 60 from both sides of the equation: 75x = 300.
Divide both sides by 75: x = 4.
Siara made 4 batches of biscuits. Answer: \boxed{4}.