Question

If 4x-3 = 2x+7 then the value of x is explanation

Answer 1

Answer:

answer is 5

Step-by-step explanation:

4x-3=2x+7

4x-2x=7+3

2x=10

X=10/2

X=5

Answer 2

Answer:

x = 1 .

Step-by-step explanation:

4^(x-3) = 2^(x+7)

taking log on both side

log { 4^(x-3) } = log { 2^(x+7) }

(x-3) log 4 = (x+7) log 2      [log a^x = x loga]

(x-3) log 2^2 = (x+7) log 2

2(x-3) log 2 = (x+7) log 2

2x - 6 = x +7

2x-x = 7-6

x=1 Ans.