Prealgebra Equations

Solve for a

• a= -2

• a= -6

• a= 3

• a= 15

Solve  3x - 7 = 32

• 13

• -13

• 12

• -12

In the equation
x + 7 = 12
7 is being added to the variable, x. How should you show your work to isolate the variable and solve the equation? 

• Subtract 7 from both sides. The solution is x = 5.

• Add 7 to both sides.
  The solution is x = 19.

• Multiply both sides by 7 The solution is x = 84.

Solve:
-5x = 25

• x = 20

• x = -20

• x = -5

• x = 5

Solve:

3(x - 2) = 18

• 6.7

• 4

• 8

• -4

• none of the above

Solve the equation:
-5x = 25

• x = 20

• x = -20

• x = -5

• x = 5

Find the solution:
10 = 4x - 2

• x = 3

• x = 2

• x = -3

• x = -2

4x + 7 = 23

• x = 16

• x = 4

• x = 9

• x = 12

3(x - 2) = 18

• 6.7

• 4

• 8

• -4

• none of the above

Madison bought  a  pounds of apples and  b  pounds of bananas and spent a total of $10.38.

  

The price of apples is $0.60 per pound. 

The price of bananas is $1.75 per pound.

Create an equation that models the total amount of money that Madison spends on fruit.

(Do NOT use $ dollar signs in your equation!)

Mathematical Equivalence

ON