x = Your number
( x + 7 ) ∙ 2 = 34
2 ∙ x + 2 ∙ 7 = 34
2 x + 14 = 34
Subtract 14 to both sides
2 x = 20
Divide both sides by 2
x = 10
( 10 + 7 ) ∙ 2 = 17 ∙ 2 = 34
I add 7 to a certain number . I doubled the result. My final answer is 34. What was my number?
6 answers
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(x+7)/5=34
Ee
10
Let the number be p
(P+7)×2=34
2p+14=34
Collecting like terms
2p=34-14
2p=20
Divide both side by 2
P=10.
(P+7)×2=34
2p+14=34
Collecting like terms
2p=34-14
2p=20
Divide both side by 2
P=10.