Question

2x + 5 = 10
What is the first operation used in solving this equation?
A) addition
B) division
C) multiplication
D) subtraction

Answer 1

First operation is to subtract

2x +5 = 10

2x +5 (-5) = 10 (-5)
2x = 5

Second operation is to divide
2x/2 = 5/2

x = 5/2

hope this helps :D

Answer 2

D.) Subtraction 
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Cheers,
fijiless
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