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Solving Linear Equations and Fractions Problems
- 1. Objective - To solve linear equations. -4 - 4 Solve. 2 x + 4 = 6 x - 20 -6 x -6 x -4 x + 4 = - 20 - 4 - 4 -4 x = -24 x = 6
- 2. Solving Equations Involving Fractions Check !
- 3. Solve. 1) 2) 3) 4)
- 4. Solve. 1) 3( x - 2) - 4 x = 5( x - 3) 3 x - 6 - 4 x = 5 x - 15 - x - 6 = 5 x - 15 + x + x - 6 = 6 x - 15 + 15 + 15 9 = 6 x 6 6
- 5. Solve. 2) 2(3 + k ) - 3(8 k + 4) = 2( k - 3) - (8 k - 5) 6 + 2 k - 24 k - 12 = 2 k - 6 - 8 k + 5 - 22 k - 6 = - 6 k - 1 + 6 k +6 + 6 k +6 -16 k = 5
- 6. 3) 4( m - 2) = 8 - 4[3( m - 5) - 5 m ] 4 m - 8 = 8 - 4[3 m - 15 - 5 m ] 4 m - 8 = 8 - 4[-2 m - 15] 4 m - 8 = 8 + 8 m + 60 4 m - 8 = 8 m + 68 - 4 m - 4 m - 8 = 4 m + 68 - 68 -68 -76 = 4 m 4 4
- 7. 5 x - 15 5 = 25 5(8) - 15 Find the dimensions of the rectangle below if the area is 125 m 2 .