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2.2 Word Problems - Basic Operations With Variables - 2
Five more than seven times the number is 19. What is the number?
7a + 5 = 19
7a = 19 - 5
7a = 14
a = 2
Solve the unknown for the following word problems.
: Two more than a number divided by 2 is 2 less than the number. What is the number?
(Hint: n/2 + 2 = n-2, solve for n)
n = 0
n = 8
n = 5
: Sixteen decreased by a number is equal to the product of that number and 3. What is the number. (Hint: 16 - a = a x 3 that is 16 - a = 3a, then a = _____)
a = 4
a = 5
a = 6
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