STAAR Algebra Solving Equations

Describe the solution set:
2(x + 5) = 2x + 5

• one solution

• no solution

• infinitely many solutions

• two solutions

Solve the equation:
½ (2x + 6) = 3x + 13

• no solution

• x = 8

• x = -5

• x = 7

Solve the equation:
4 - 6x - 2= -2(3x-1)

• no solution

• infinitely many solutions

• x = ⅓

• x = 4

Which of the equations has no solution?

• 2x + 1 = 5x - 3

• 2(x - 7) = 2x-14

• 3(2x+1) = 6x+1

• 15x - 30 = 0

½x + ⅓x = 5

• x = ⅕

• x = 1

• x = 5

• x = 6

Determine the type of solution you will have if you get

4=4

• one solution

• infinite solutions

• no solution

• I don't know. I need to study.

S = 3F - 24  Solve for F

• F = (S + 24)/3

• F = S/3 + 24

• F = 3S + 24

• F = 3(S + 24)

What should we do first to solve for x?

y=mx+b

• Add b

• Subtract b

• Multiply by m

• Divide by m

A toy company spends $1500 per day for factory expenses plus $8 to make each teddy bear. They sell the teddy bears for $12 a piece. Which equation could be used to find the number of bears, x, the company has to sell in one day to equal its daily cost?

• 1500 + 8x = 12

• 12 + 8x = 1500

• 1500 + 8x = 12x

• 8x = 12x + 1500

Penelope is going to the carnival to ride the rides. It costs $20 to get into the carnival and ride tickets are $0.50 each. Write an equation that represents this scenario if she spends $35 in all.

• .50x + 20 = 35

• .50x = 35

• .50 + 20x = 35 

• .50x - 20 = 35