Reveal Algebra

Solve 7 + x/4 = 5 for x.

• 7

• -8

• -7

• 8

What is the best first step for solving this equation?

• Add 18 to both sides of the equation.

• Subtract 18 from both sides of the equation.

• Multiply both sides of the equation by 5.

• Divide both sides of the equation by 1.8.

What is the solution for the equation 0.7m - 3.2 = 2.5 + 1.2 m?

• -0.089

• 0.089

• 11.4

• -11.4

Check all inequalities that have solutions that match the number line.

• 45 < or = 15x

• x/3 < 1

• x/6 > or = 1/2

Mark each statement that is true about the solutions of 6 - 5x > -9.

• The solutions are all less than -3.

• The solutions are all less than 3.

• The solution set includes 0.

• The solution set includes -6.

The equation for finding the area of a trapezoid is A = 1/2(b1 + b2)h. What is the equation solved for h?

• h = A/b1+b2

• h=2A/b1+b2

• h=1/2(b1+b2)

• h=2A-b1-b2

Simplify 12x-3(2x+y)-5y.

• 10x-4y

• 6x-8y

• 6x-4y

• 10x-8y

Solve 2.5 = x/6.

• x = 15

• x = 2.4

• x = 8.5

• x = 3.5

Solve 5z-12z-10=18+7z.

• z = 1.75

• z = 2

• z = 0

• z = -2

Solve 5x+2(3x-7)=-20+11x+6.

• x = 10

• x = -10

• Infinitely many solutions

• No solution