Box A contained 64 more buttons than Box B at first. More buttons were added to Box A. For every 1 button added to Box A, 2 buttons were removed from Box B. The number of buttons in Box B then became 28 fewer than before. In the end, the ratio of the total number of buttons in both boxes to the number of buttons left in Box B was 4: 1. How many buttons were there in Box A at first?
Percentage
A percentage is a number indicated as a fraction of 100. It is a dimensionless number often expressed using the symbol %.
Algebraic Expressions
In mathematics, an algebraic expression consists of constant(s), variable(s), and mathematical operators. It is made up of terms.
Numbers
Numbers are some measures used for counting. They can be compared one with another to know its position in the number line and determine which one is greater or lesser than the other.
Subtraction
Before we begin to understand the subtraction of algebraic expressions, we need to list out a few things that form the basis of algebra.
Addition
Before we begin to understand the addition of algebraic expressions, we need to list out a few things that form the basis of algebra.
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