Addition
x + 15 = 30
What is x = 15?
x - 38 = 33
What is x = 71?
5x = 55
What is x =11?
x ÷ 7 = 49
What is x = 343?
A letter or symbol used to represent a number or quantities that vary
22 = 17 + x
What is x = 5?
x - 2.3 = 45
What is x = 42.7?
What is x = 3?
x ÷ 2 = 150
A mathematical sentence that contains an equal sign
What is an equation?
90 = x + 23
What is x = 67?
93 = x - 26
What is x = 119?
1.8x = 12.6
What is x = 7?
32 = x ÷ 4
What is x = 128?
The number being multiplied to the variable in a term
What is a coefficient?
49 + x = 293
What is x = 244?
x - 33.4 = 92. 2
What is x = 125.6?
7x = 47.6
What is x = 6.8?
2.3 = x ÷ 8
What is x = 18.4?
The process of replacing a variable in an expression with its actual value
What is substitution?
x + 39.4 = 59.9
What is x = 20.5?
What is x = 267.2?
284x = 1931.2
What is x = 6.8?
94.5 = x ÷ 0.6
What is x = 56.7?
A number, a variable, or a product of numbers and variables
What is a term?