Q.3. 5
2x-2=625, find x
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Sol : Option C
Explanation:
52x-2 = 625
⇒52x-2 = 54
⇒2x-2 = 4
⇒x = 3
Q.5.[image] ,find value of x.
Sol : Option A
Explanation:
[image]
⇒ 5x - 3 = 2 ⇒ 5x = 5
Q6.[image] ,find value of x.
Sol : Option A
Explanation:
[image]
⇒ 2x - 4 = -2x + 4
⇒ 4x = 4 + 4
⇒ 4x = 8
⇒ x = 2
Q.7.If 17
x = 4913, find the value of 2
2x-1.
Sol : Option B
Explanation:
17x = 4913
⇒17x = 4913
⇒17x = (17)3
⇒x = 3
Value of 22x-1 ⇒ 22.3-1⇒ 25 = 32