Solving Equations Combining Like Terms on One Side

What has to be done BEFORE you start solving a basic two-step equation?

• distributive property, combining like terms, and getting the variables all on one side

• distibutive property, move the variables to one side, cimbine like terms

• distributive property, cancel the constants, get variables to one side

• distributive property, combine like terms, eliminate the constant

2x +7 = -8x - 9 +10x

• no solution

• identity

• one solution

• infinitely many

-6a -15 = -3(a - 7)

• one solution

• no solution

• infinitely many

• a = 12

What should you do first when solving equations?

• Eliminate the parentheses

• Combine like terms

• Isolate the variable

• Whatever you do to one side do to the other.

Like terms must have _____________________________________ and _________________________.

• same variable and same power or exponent

• same variable and number

• exponent and number

• same variable and the same sign

What is the firs step in solving for the variable?

• Distributive property

• Combine Like Terms

• Move the variables to the same side

• Solve for the variable

What is the firs step in solving for the variable?

• Distributive property

• Combine Like Terms

• Move the variables to the same side

• Solve for the variable

What is the firs step in solving for the variable?

• Distributive property

• Combine Like Terms

• Move the variables to the same side

• Solve for the variable

What is the firs step in solving for the variable?

• Distributive property

• Combine Like Terms

• Move the variables to the same side

• Solve for the variable

• add 3z with 7z

• subtract 3z and 7z