Simple Equations
Solve for x: 2x + 2 = 18
X = 8
Simplify: 2x + 5
2x + 5 is already simplified
Emily has x candies. She receives 3 more candies as a gift and then gives away y candies to her friend. If she now has 15 candies, express her initial amount in terms of x and y.
x + 3 − y = 15
Is 5c - 2c = 3c an expression or an equation
Equation
Solve for x: 3x + 4 = 7
X = 1
Simplify: 3(2x - 4) + 2
6x - 10
The perimeter of a rectangle is 2a+2b, where a is the length and b is the width. If the perimeter is 32 meters, express the perimeter equation and find the values of a and b if a>b.
2a + 2b = 32, a>b, a = 12, b = 4
What are the "like" terms in the expression 6h + 5y - 2y + 8
5y and 2y
Solve for x: 3x + 3 - 2x = 21
X = 18
Simplify: 4x - (2x + 3)
2x - 3
The sum of three consecutive odd integers is n. Express the third integer in terms of n.
The third integer is n+4.
Is 9x + 5x = 14x an expression or an equation
Equation
Solve for x: 4x - 5 - 3x + 2 - 2x = 9
X = -12
Simplify -2 - (4x + 4)
-4x - 6
A tutoring center charges $25 per hour for tutoring services. If h represents the number of hours and there is a $10 registration fee, express the total cost in terms of h and find the total cost for 3 hours of tutoring. (h doesn't mean one hour btw)
20h + 5, Total cost for 2 hours = $45
What are the "like" terms in 1a + 2b + 3c + 4a
1a and 4a
Solve for x: 21 + x = 2(x - 6)
X = 33
Simplify: 3(2y + 2) + 4(y - 2)
10y - 2
The temperature in a city is decreasing at a rate of 2 degrees Celsius per hour. If the current temperature is 25 degrees Celsius, express the temperature t after h hours in terms of h and find the temperature after 4 hours.
The temperature after h hours is t(h)=25−2h. The temperature after 4 hours is 17 degrees Celsius.
Is 9e + 15a an expression or an equation
Expression