Multi Step Equations
Solving Equations
Solve for x.
4(3x-10) + 7 = 15
What is:
x = 4
Solving Equations
Solve for x.
4x + 3 = 7
What is:
x = 1
Solving Inequalities
Solve for n:
165 > -7(4n-4)-3
What is:
n> -5
Is the statement true or false?
2X > 6
X > 3
True
What is the first step in solving both equations AND inequalities?
DISTRIBUTE (get rid of parentheses)
Solve the equation
5(x+1) - 2 (3x-4) = 14
What is:
X = -1
Solving Equations
Solve for x.
2x - 5 = - 11
What is:
x = -3
Solve the inequality
n+3 - 2n > 5 + n - 1 + 3
n <-2
Is the statement true or false?
-2K + 30 = -10
K = -40
False
solve the equation:
0.2(4-5x)+1=2.4
x=-0.6
Solving Equations
Solve for x.
-9x + 1 = -71
What is:
x = 8
Write an inequality
S is at most 55
s <= 55
We use a closed circle to represent the inequalities < and > ?
False
What makes solving inequalities different than solving equations? (most important rule?)
FLIP the direction of the sign when you multiply or divide by a negative number!!!
solve the equation
0.4(2x+3)=0.3x+0.8
What is:
x = -0.8
Solve for v.
v/3 + 14 = 30
v = 48
Write an Inequality
J is less than 8
J < 8
Inequalities only have one solution, just like equations.
False. Inequalities have infinitely many solutions.
What is the 4th step in solving equations?
Do the INVERSE of whatever is MULTIPLIED or SUBTRACTED
Solve the Equation:
8-3(2x-5)=4(x+2)
What is:
x=1.5
Given c + 4 > -14
We use the inverse operation, subtraction, to solve the inequality.
TRUE