Worked examples – First degree equations

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Worked Examples – First degree equations Based on what we have explained to the article First degree Equations, we are going to solve some equations below: Example 1 Solve the equation: a) $ displaystyle 5x=-60$ $ displaystyle x=frac{{-60}}{5}$ $ displaystyle x=-12$ b) $ displaystyle -3x=-9$ $ displaystyle x=frac{{-9}}{{-3}}$ $ displaystyle x=3$ c) $ displaystyle frac{1}{3}x=12$ $ displaystyle x=frac{{12}}{{frac{1}{3}}}=12cdot 3$ […]

Equations and Gradients of a straight line

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Equations and Gradients of a straight line What is a straight line? A straight line is a line with no curves. By definition we can say that a straight line is the set of all points between and extending beyond two points. Equation of a straight line An equation of the first degree of the […]

Simultaneous linear equations

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Simultaneous linear equations What are simultaneous equations? Simultaneous equations are a set of two or more equations, each containing two or more variables whose values can simultaneously satisfy both or all the equations in the set, the number of variables being equal to or less than the number of equations in the set. Simultaneous linear […]

Equations. First degree equation

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First degree equation What is an equation? An equation in mathematics is a statement that links 2 expressions with the equal symbol. One of the basic type of equations are the first degree equations,that can be called as ‘’Linear equations”. Linear Equations with one variable A linear equation is an equation that represents a line on […]