Two-Step Equations
Solve the equation.
r - 18 = 42
r = 60
Solve the equation.
6(x-1) = 12
x = 3
Solve the inequalities.
x + 4 < 3
x < -1
Solve the inequality.
2y + 7 > 11
y > 2
Simplify: -9a + 5 - a
-10a + 5
Solve the equation.
w/4 - 21 = -3
w = 72
Solve the equation.
14t - 4 - 9t = 31
t = 7
Solve the inequalities.
m + 13 ≥ 14
m ≥ 1
Solve the inequality.
11 - 4z < -1
z > 3
Simplify:
3(-5) + 7 - 11
-19
Solve the equation.
4 - 3x = 34
x = -10
Solve the equation: -5(3n+5) = 20
n = -3
Solve the inequality.
-3y > 36
y < -12
Solve the inequality.
3 + b/3 < 7
b < 12
Simplify:
-4(3x - 5)
-12x + 20
Solve the equation.
d/15 + 26 = 33
d = 105
Solve the equation:
-(z+11) = 6
z =- 17
Solve the inequality.
w/-11 ≤ 6
w ≥ -66
Solve the inequality.
x/-3 - 8 ≥ -3
x ≤ -15
What is the rule when you multiply or divide by a negative variable when solving inequalities?
You flip the inequalities sign
Write the statement as an equation and solve.
Five minus the product of 2 and a number is 7.
5 - 2x = 7
x = -1
What is the solution of the equation.
-0.5(2x - 10) = 8
x = -3
Which inequality is equivalent to -18 ≤ 3p? Show your work.
a) p≥-54
b) -54≥p
c) p≥-6
d) -6≥p
c) p≥-6 or -6≤p
Solve the inequality.
z/-4 + 3 < 15
z > -48
Solve the following inequality:
−6 < 3n + 9
-5 < n or n > -5