Variables

12(4x + 5) + 10x

• 58x + 20

• 58x + 60

• 38x + 20

• 10x + 20

The number before a variable is the _____.

• term

• constant

• coefficient

• variable

What is 2x(3x+2xy)+8 in simplest form?

• 6x²+4x²y+8

• 6x²+4xy+8

• 6x+4xy+8

• 6x²+2xy+8

Simplify:
 8a - 2(7a -3)

• 8a - 14a - 6

• -6a + 6

• -6a - 6

• -6a - 3

Simplify.
-2(x + 4) - 3(a - 6)

• -2x - 3a - 26

• -2x - 3a + 10

• -2x + 3a - 26

• -2x + 3a + 10

Simplify by combining like terms:
4x² - 3x + 11 -2x

• 4x² - 5x + 11

• 11x + 11

• 16x² - 5x + 11

• 10x²

3x²+4x²+7 is

• 7x⁴+7

• 7x² + 7

• 7x⁵

• 7

A ​system of equations is when you have ​ (a)   or more equations that share the same variables.

• two

• one

• none

Select the hot spot that marks the solution to this system of equations.

To isolate something in an equation you need to use the ​ (a)   operation to leave the variable​ (b)   on one side of the equation.​

• inverse

• by itself

• with other numbers

• same