Math Guides
How to Solve Equations With Variables on Both Sides
Move variable terms to one side, constants to the other, and solve equations with variables on both sides.
April 12, 20265 min read
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Move variable terms to one side, constants to the other, and solve equations with variables on both sides.
Solve equations like 2x + 3 = 11 by undoing operations in the right order.
Learn inverse operations and solve one-step equations like x + 7 = 12.
Use PEMDAS to evaluate expressions in the correct order and avoid common calculation mistakes.
Use equivalent ratios and cross multiplication to solve proportions step by step.
Understand ratios as comparisons and learn how to simplify, scale, and solve ratio problems.
Learn how to find a percent of a number using decimals, fractions, and mental math shortcuts.
Convert fractions to decimals by division, place value, or denominator shortcuts.
Learn the keep-change-flip method for dividing fractions and why it works.
Multiplying fractions is easier than adding them: multiply across, then simplify.