I
What is the reciprocal of -1/3?
-3
What is the reciprocal of 7/8?
8/7
What is the inverse operation to subtraction?
Addition
What is the inverse operation to division?
Multiplication
Solve the equation.
y + 8 = -11
y = -19
Solve the equation.
3.2 = -0.4n
n = -8
Solve the equation.
-6 = w - 2
w = -4
Solve the equation.
(-1/4)t = -3
t = 12
How many solutions will this equation have?
15 = 9 - 3a
1 solution
a = -2
How many solutions will this equation have?
9j - 8 = 8 + 9j
No solution
How many solutions will this equation have?
5m - 20 = 5 (-4 + m)
Infinitely many solutions
What do you call an equation with two or more variables?
Solve the equation.
3n + 12 = 30
n = 6
Solve the equation.
2(3 - p) - 17 = 41
p = -26
Solve the equation.
-14x + 28 + 6x = -44
x = 9
Solve the equation for y.
20 = 5x + 10y
y = (20 - 5x)/10
y = 2 - (1/2)x