Writing and Solving Equations Review

The objective when solving an equation is to....

• isolate the variable.
• check the solution.
• guess and check.
• Combine Like Terms.

Solve the following equation.                  7(2x - 4) = 42

• x= 5
• x= 8
• x= 2
• x= 9

Solve the following equation.
-5 - 7y = -20y + 34

• y = 3
• y = 1
• y = 0.67
• y = 46

Solve the following equation.
4x + 3 = -5

• 1/2
• -1/2
• -2
• 2

Solve the following equation. 
5(y + 4) = 4(y + 5)

• 0
• 2
• no solution
• All real numbers

Solve the following equation. 
6x - 2(x-3) =4(x + 1) + 4

• 0
• 2
• No solution
• All real numbers

Solve the following equation.
3x + 2(4x - 4) = 3

• 4
• 3
• 2
• 1

Solve the following equation.
2+6x=x-1

• x=12
• x=-3/5
• x=1/7
• x=-7

Simplify each equation. Tell whether the equation has one, no, or infinite solutions.
3x - 7 = 3(x - 3) + 2

• one
• no solutions
• infinite solutions

Simplify each equation. Tell whether the equation has one, no, or infinite solutions.
3x - 8 = 3(x - 4) + 1

• one
• no solutions
• infinite solutions