Solving equations
Solve for x
3x=15
x=5
Solve
5x+8=23
x=3
Solve for n
−5 + 7n = 9n + 11
n=-8
Find the LCD of
x/10 + 3x/5=7/2
LCD=10
State the operation that would be applied to both sides
x+7=14
Subtract 7 from both sides
Solve
x2 -3= 6
x=3
Do a LS RS check for
−5 + 7n = 9n + 11
n=-8
Therefore LS=RS
Solve
-5/6=2x/9
-15/4=x
Solve for the unknown
-19=-12+c
c=-7
WRITE AN EQUATION FOR THIS SENTENCE (a number, a, is doubled and than decreased by 20 and is equal to 10)
2a-20=10
Solve
4(x − 3) = 32
x=11
4y/9 - 2y/3=10
y=-45
Solve
10x-15x=43+32
x=-15
8x+6 -3x-5x= 17
N/A
Solve
4(x− 7) − 2(x + 3) = −15x
x=2
Describe the steps for solving an equation with fractions
Step 1: Find the lowest common denominator for the equation.
Step 2: Multiply every term in the equation by the lowest common denominator
Step 3: Reduce each term to create a “denominator free” equation
Step 4: Solve for the variable using the steps to solve an equation