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Bell Work. X = 6 X = 70 X = 10 X = -6. X - 7 = -1 X - 4 = 66 8 = X - 2 -8 = X - 2. Modeling the equation using a bar diagram. 253 Competitors. Use the model to write and solve an equation. X + 134 = 253 or 134 + x = 253. X = 119 boys. Use the model to write and solve an equation.
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Bell Work • X = 6 • X = 70 • X = 10 • X = -6 • X - 7 = -1 • X - 4 = 66 • 8 = X - 2 • -8 = X - 2
Use the model to write and solve an equation X + 134 = 253 or 134 + x = 253 X = 119 boys
Use the model to write and solve an equation X – 15 = 119 X = 134 girls
Use the model to write and solve an equation X + 15 = 134 X = 119 boys
Use the model to write and solve an equation X + 119 = 134 X = 15 more girls
A used book costs $17 less than the same book new. The used book costs $9. Use a bar diagram to write and solve an equation to find out how much the new book cost. ? X – 9 = 17 New book Used book X = $26 for a new book 9 17
Use a bar diagram to write and solve an equation to find out how many hits he got in the second game. . X – 1 = 5 X = 4 hits in the second game
Use the model to write and solve an equation X + 4 = 7 X = 3
Use the model to write and solve an equation X + 2 = 6 X = 4