Solving Equations
Solve the following equation: 4x - 5 = 11
x = 4
Solve the following equation: 3(x-4) = 0
x=4
What is Mrs. Marrero's favorite animal?
An elephant!
d = rt; solve for t
t = d/r
When Ethan stands on a box, he is 10 feet tall. If the box is 4 feet tall, how tall is Ethan?
Equation: 4 + r = 10
Answer: r = 6
Solve the following equation: 3x+1 = 1
x = 0
Solve the following equation: (2(x-1))/3 = 10
x=16
Where did Mrs. Marrero graduate college?
NEIU
3x + 2y = z; solve for x
x = (z-2y)/3
A store is selling blank CDs in packages of 5 for $20. What is the cost of one blank CD?
Equation: 5r = 20
Answer: r = 4
Solve the following equation: x/4 = 10
x=40
Solve the following equation: 4x(3-2) = 1
x=1/4
Pride
a = 2(L-W) ; solve for L
L = A/2 + W
Abbie has put $40 into her savings account. She has made 5 deposits of the same amount. How much was the amount of each deposit?
Equation: 5r = 40
Answer: r = 8
Solve the following equation: -2x + 5 = 3x
x = 1
Solve the following equation: 4x - 10 = 4x
no solution
3
A - x = h(b+c) ; solve for b
b = (A-x)/h - c
For the 8th grade Great America trip, each student is given $19 for food. This covers the cost of 2 meals at x dollars each plus $7 worth of snacks. Write a two-step equation to find how much money the school expects each student will spend per meal.
Equation: 2x + 7 = 19
Answer: x = $6 per meal
Solve the following equation: -2x/6 = 1
x=-3
Solve the following equation: 10x=10x
all real numbers
What is the most common letter in the english alphabet?
E
y = m + r; solve for m
During the winter, you charge people $12 for going to their house to shovel, then $9 for every hour you shovel. If you make $57 one day, how many hours did you spend shoveling?
Equation: $12 + $9h = $57
Answer: h = 5 hours