LIKE TERMS
x - 9 = 2
11
5y + 2m = 10a If you know the value of a is -2 and you know the value of y is 4. What is the value of m?
m = -20
5 + 3x = 20
x = 5
a² + b² = c² If you know that a is 3 and b is 4 then what is the value of c?
c = 5
4x + 7 = 3
x = -1
9x - 3y = 6n If you know that x is 4 and y is -4 what is the value of n?
12x - 9 = 3x
x = 1
What is a variable?
A variable is a letter that substitutes an unknown value.
8x - 12x + 30 = 40
x = -2.5
14c - 3x = 5n If you know that c is 3 and n is 6
x = 4