12 apples

Twelve apples and two loaves of bread cost 5.76, and 6 apples and three loaves of bread cost 7.68. How much is a loaf of bread?

Correct answer:

a =  0.08
b =  2.4

Step-by-step explanation:


12a + 2b = 5.76
6a + 3b = 7.68

12·a + 2·b = 5.76
6·a + 3·b = 7.68

12a+2b = 5.76
6a+3b = 7.68

Row 2 - 6/12 · Row 1 → Row 2
12a+2b = 5.76
2b = 4.8


b = 4.8/2 = 2.4
a = 5.76-2b/12 = 5.76-2 · 2.4/12 = 0.08

a = 2/25 = 0.08
b = 12/5 = 2.4

Our linear equations calculator calculates it.



Did you find an error or inaccuracy? Feel free to write us. Thank you!







Tips for related online calculators
Do you have a linear equation or system of equations and looking for its solution? Or do you have a quadratic equation?

You need to know the following knowledge to solve this word math problem:

Related math problems and questions: