Q 1: The difference between Jenny's and Bob's money is $75. j  b = 75 b  j = 75

Q 2: 7  5 = 2^{1} True False

Q 3: The sum of twice a number and 13. Write an algebraic expression for the statement. 13 + 2 2x + 13 x + 13 13x + 2

Q 4: The coefficient of x in (7x+5) is _____. 5 7x 7 +

Q 5: Solve the system by the method of substitution
2x + y = 6
x + y = 0 (2,3) (1,0) (4,2) (2,2)

Q 6: Some number added to 11 gives 20. 11x = 20 x = 11 + 20 x + 11 = 20 x + 20 = 11

Q 7: 5 decreased by p. 5+p 5p 5p

Q 8: Solve the following linear equations.
x  2y + 3z = 9
y + 3z = 5
z = 2
x = 1, y = 1 and z = 2 x = 1, y = 3 and z = 2 inconsistent system x = 1, y = 2 and z = 2

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Question 10: This question is available to subscribers only!

