Solving equations

Links and useful resources

• gr7's Prealgebra Course Outline START HERE<<<
• IXL Grade 7 index
• IXL Grade 8 index
• AoPS Alcumus
• AoPS Prealgebra Outline with assignments
• Handwritten math converter
• IXL prealgebra practice index
• OpenSTAX Prealgebra-1 textbook

Concept summary and connections

• properties of equality
• transitive property of equality

Worked examples

$\frac{1}{10}+\frac{2}{100}+\frac{3}{1000}+\frac{x}{10000}+\frac{2}{100000}=\frac{12372}{100000}$

$\frac{4}{5}=\frac{x}{25}=\frac{60}{y}$, find $\frac{x}{y}$

four more than triple a number equals ten less than five times the number $3x+4=5x-10$

Media resources

• Youtube search for "properties of equality"
• Youtube search for "transitive property of equality"

Guided practice

• Identify which property of equality is used at each step
• Work through several examples of subtracting grouped expressions
• subtracting fractions with multi-term numerators

Homework

• #hw (math) IXL distributive practice 2025-01-13
• #quiz Practice using addition and subtraction of terms with variable and coefficient - recognizing when to add or multiply is giving trouble.