MODULE 7 REVIEW SOLVING LINEAR EQUATIONS 7 1

MODULE 7 REVIEW SOLVING LINEAR EQUATIONS

7. 1 7. 2 7. 3 7. 4 100 100 200 200 300 300 400 400 500 500

X=3 X + 5 = 3 X - 1 Row 1, Col 1

n=5 1, 2

x=8 3(x-5) + 1 = 2 + x 1, 3

One Solution Tell whether the equation has one, zero, or infinitely many Solutions: 4 x – 3 = 2 x + 13 1, 4

h = -4 10 h + 12 = 8 h + 4 2, 1

p = -2 -0. 75 p – 2 = 0. 25 p 2, 2

k=4 5 – 7 k = -4(k + 1) - 3 2, 3

Infinitely Many Solutions Tell whether the equation has one, zero, or infinitely many Solutions: 4 x – 5 = 2(2 x -1) -3 2, 4

n=8 -n + 5 = n - 11 3, 1

w = 12 3. 6 w = 1. 6 w + 24 3, 2

x = 10 3, 3

No Solutions Tell whether the equation has one, zero, or infinitely many Solutions: 3(2 m – 1) + 5 = 6(m + 1) 3, 4

10 minutes Company A Company B $0. 35 plus $0. 03/min $0. 45 plus $0. 02/min What is the length of a phone call that would cost the same no matter which company you used? 4, 1

40 miles Easy Ride Best Ride $10 pick up charge $0. 10/mile Free pick up charge $0. 35/mile Find the number of miles for which the cost of both shuttles is the same. 4, 2

x = -8 4, 3

Infinitely Many Solutions y + 7 + 2 y = -14 + 3 y +21 4, 4

8 x – 20 = x + 15 ; x = 5 Write the equation and solve: Twenty less than 8 times a number is the same as 15 more than the number. 5, 1

Perimeter = 3. 2 units The perimeters of the rectangles shown are equal. What is the perimeter of each rectangle? n + 0. 1 n + 0. 6 n 2 n 5, 2

x=7 10 + 4 x = 5(x - 6) + 33 5, 3

2 x Create an equation with infinitely many solutions. 2(x - 1) + 6 x = 4 (? ? -1) + 2 5, 4