Addition
x + 4 = 25
What is x = 21?
x - 2 = 6
What is x = 8?
9x = 27
What is x = 3?
y/6 = 2
What is y = 12?
An emperor penguin is 45 inches tall. It is 24 inches taller than a rockhopper penguin. Write and solve an equation to find the height of a rockhopper penguin.
What is:
r + 24 = 45
r = 21 inches
a + 10 = 13
What is a = 3?
d - 7 = 9
What is d = 2?
7x = 63
What is x = 9?
x/4 = 14
What is x = 56?
Write and solve an equation for the word sentence: The product of a number n and 5 is 30.
What is:
5n = 30
n = 6
m + 2.4 = 3.7
What is m = 1.3?
k - 83 =121
What is k = 204?
5b = 400
What is b = 80?
x/6 = 6
What is x = 36?
Tell whether the given value is a solution of the equation.
p + 10 = 38; p = 18
What is no solution?
a + 2/5 = 7/10
What is a = 3/10?
x - 327 = 665
What is x = 992?
10x = 250
What is x = 25?
28 = a/14
What is a = 392?
Tell whether the given value is a solution of the equation.
m/4 = 16; m = 4
What is no solution?
27 = c + 27
What is c = 0?
a - 163 = 392
What is a = 555?
2y = 76
What is y = 38?
8 = x/16
What is x = 128?
A sandwich shop sells sandwiches for $6.75 each. A customer buys multiple sandwiches for a total of $33.75. Write and solve an equation to find the number of sandwiches.
What is:
6.75s = 33.75
s = 5 sandwiches