Vocabulary
A mathematical sentence that uses numbers, variables, operation symbols, and an equal sign.
What is an equation?
Write an equation for the sentence: seven times x is y squared decreased by three.
What is 7x = y2 - 3?
Solve the equation: -14 + y = -2.
What is y = 12?
Solve the equation: 3x + 2 = 14
What is x = 4?
Solve the equation: 6x + 7 - x = -8
What is x = -3?
An operation that reverses the effect of another operation.
What is an inverse operation?
Write an equation for the sentence: two plus the quotient of a number and eight is the same as sixteen.
What is 2 + x/2 = 16?
Solve the equation: 18 = -3x.
What is -6 = x?
Solve the equation: 8 = x/3 + 6
What is 6?
Solve the equation: 3x - 5x = 8
What is x = -4?
Any value that makes an equation true.
What is a solution?
Write an equation for the sentence: one fifth the sum of p and 13 is identical to thirty-two.
1/5 (p + 13) = 32
Solve the equation: x/2 = -5.
What is x = -10?
Solve the equation: 43 = -8x - 5
What is -6 = x?
Solve the equation: 2(x - 4) = -4
What is x = 2?
A letter or symbol that represents an unknown quantity.
What is a variable?
Write an equation for the sentence: three times the sum of the squares of x and y is the same as r minus four.
What is 3(x2 + y2) = r - 4?
Solve the equation: x/7 = 12?
What is 84?
Solve the equation: x/6 - 1 = -3
What is x = -12?
Solve the equation: 3(x - 2) + 3x = 18
What is x = 4?
A value in an expression or equation that does not change.
What is a constant?
Write an equation for the sentence: two times the difference of six and n is equal to the sum of x and seven.
What is 2(6 - n) = x + 7?
Solve the equation: x/-18 = 2/9
What is x = -4?
What is x = 5?
Solve the equation: 2 + 3(x + 6) = -4
What is x = -8?