In the equation 3x = 21, what operation is being performed on the variable 'x'?
multiplication
Identify one set of like terms in the following algebraic expression: 7x + 5 - 3x + 2.
7x & -3x or 5 & 2
x - 4 = 8
12
True or False: To solve the equation 12 + x = 20, you should subtract 12 from both sides.
true
True or False: The expression 4x + 7 - 3x can be simplified to 11x.
False
2x = 30
15
To solve the equation x - 9 = 5, what should you do to both sides of the equation?
add 9
Simplify the algebraic expression by combining like terms: 12x - 5 + 3x + 8.
15x+3
x/6 = 4
24
You found that the solution to the equation x - 3 = 11 is x = 14. What would you do to check if this solution is correct.
substitute 14 for x
Sarah has 5x apples and John has 2x apples. If they combine their apples and then sell 3 apples, what equation shows how many apples they have left?
7x-3
3x - 2 = 13
5
Sarah bought some apples and 6 bananas. In total, she bought 10 pieces of fruit. What is a one-step algebraic equation to represent this situation.
x+6=10
If 3x + 4 = 13, what is the value of 3x?
9
x/3 + 7 = 5
- 6