This type of math statement has no equal sign.
Expression
Solve for the variable:
2x + 1 = 5
x=2
Do the first step towards solving the equation:
34x + 99 = 3(15x + 9)-3x
Distributive the 3 into the parentheses
34x+99=45x+27-3x
Simplify:
3(x+2)
3x + 6
Which steps are always used when solving equations?
Inverse Operations
Keep the Equation Balanced
A math statement that uses one of four different symbols to represent a problem with many solutions.
Inequality
Solve for the variable:
a/3-4=11
a=45
Do the next step:
34x+99=45x+27-3x
Combine like terms. 45x minus 3x.
34x+99=42x+27
Simplify:
-4 (m + 9)
-4m - 36
What went wrong in this step?
3 and 6x are not like terms so they cannot be combined.
Doing the opposite to cancel out numbers in an equation.
Inverse Operations
Solve for the variable:
-2t-5=-11
t=3
Do the next step:
34x+99=42x+27
Variable on both sides. Eliminate 34x or 42x.
99=8x+27
Simplify:
3x - 9x
-6x
Which step would you do first?
Distributive Property. Multiply by -3.
Multiplying a number by each term within a set of parantheses.
Distributive Property
Solve for the variable:
15-5x>= 30
x<=-3
Do the next step:
99=8x+27
Inverse Operations. Subtract 27 from both sides.
72=8x
Simplify:
3(10 + 5y) - 14y
y+30
What step would you do next?
−3x -18= 4 − 5x
Deal with variable on both sides. Cancel -3x or cancel -5x.
A part of an expression that contains known numbers and/or variables. They are separated by plus or minus.
Term
Solve for the variable:
f/10 +20> -4
f> -240
Do the next step:
72=8x
Inverse Operations. Divide both sides by 8.
9=x
Simplify:
2a +3x+3x^2-x+5a
7a+3x^2+2x
Which steps are involved in solving the following equation?
Combine Like Terms
Inverse Operations
Keep the Equation Balanced