Emath Algebra

Simplify the expression: 3x + 2y - 4x + 5y

• -x + 7y

• 2x + 7y

• -4x + 5y

• -x + 3y

Multiply the binomials: (2x + 3)(4x - 5)

• 8x^2 + 2x - 15

• 8x^2 + 2x + 15

• 8x^2 - 2x - 15

• 8x^2 + 2x + 25

Simplify the expression: 2(x + 3) - 4(x - 2)

• -2x - 14

• 2x + 14

• -2x + 10

• -2x + 14

Multiply the binomials: (3x - 2)(2x + 5)

• 6x^2 + 11x + 10

• 6x^2 - 11x - 10

• 6x^2 + 11x + 20

• 6x^2 + 11x - 10

What is the value of y in the solution to this system of equations? 3x - 5y = 22 y = -5x + 32

Mathematical Equivalence

ON

Graph the solution to the system. The first equation has been plotted for you.

y = -3x-3

y= 4x +4

Find the product of the binomials: (3x + 2)(5x - 4)

• 15x^2 + 2x - 8

• 15x^2 - 2x - 8

• 15x^2 - 2x + 8

• 15x^2 + 2x + 8

Apply the distributive property to simplify: 3(2x + 5)

• 6x + 15

• 6x - 15

• 6x + 10

• 6x + 5

Write the algebraic expression for 'three times a number decreased by 7'

• 3x + 7

• 3x + 3

• 3x / 7

• 3x - 7