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.
![### Algebraic Equations
Below are two algebraic equations provided for solving:
#### Equation (i):
\[ 2x + 4.5(25 - x) = 25 \]
This linear equation involves one unknown variable, \( x \). The term \( 4.5(25 - x) \) indicates a multiplication operation within the parentheses, where 4.5 is multiplied by the difference between 25 and \( x \).
#### Equation (ii):
\[ -\frac{6}{5}y - 4 = -22 \]
This is another linear equation with one unknown variable, \( y \). The equation includes a fraction, \(-\frac{6}{5}\), which is multiplied by \( y \), and a constant term, -4. The equation is set equal to -22.
### Instructions for Solving
- For Equation (i), distribute the 4.5 across the term inside the parentheses and then solve for \( x \).
- For Equation (ii), isolate the variable \( y \) by first adding 4 to both sides of the equation and then solving for \( y \) by dividing both sides by \(-\frac{6}{5}\).
These equations practice skills in algebraic manipulation, specifically in solving linear equations involving distribution and fractions.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fbb48b187-83f1-4dc9-80dd-ddef9eb815af%2F89836465-cae8-46d9-a64c-e9beffcea663%2F878xf9u_processed.jpeg&w=3840&q=75)


Step by step
Solved in 3 steps with 3 images









