Coaching Centre
Chapter 7: Equations and inequalities Notes
Solving linear equations with pronumerals on both sides, brackets and fractions, solving x² = c, using formulas, solving worded problems and solving linear inequalities.
Sections
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7A Solving linear equations Mastered
Solving one-step and two-step linear equations with inverse operations, including negative solutions and checking.
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7B Equations with brackets and pronumerals on both sides Mastered
Expanding brackets to solve equations, and collecting pronumerals on one side when they appear on both sides.
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7C Equations with fractions Mastered
Solving equations with algebraic fractions by multiplying both sides, including fractions on both sides and cross-multiplying.
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7D Solving x² = c and using formulas Mastered
Solving equations of the form x² = c with two, one or no solutions, and substituting into formulas to find an unknown.
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7E Solving worded problems Mastered
Defining a pronumeral, writing an equation from a worded problem, solving it and answering in words.
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7F Inequalities Mastered
Inequality symbols, showing inequalities on a number line, and solving linear inequalities including reversing the sign when multiplying or dividing by a negative.