Question

Q2. Find the value of x in the following
a) 52x+1÷25=53
b) (7/9)2x×(7/9)-x=(7/9)7
C) 122x=144
d) (9/7)2x-1×(9/7)5=(9/7)x=2
Q3. What should be added to(1/2+1/3-1/5) to get 3?
Q4 Find (x+y)÷(x-y) if X=2/3, y=3/2 X=5/4, y=-1/3
Q5. Simplifying the following
a) (-9/5×13/5)÷(-2/5×3/5)
b) (4-1×8-1)÷(2/3)-2
c) [(1/3)-3)-(1/2)-3]÷(1/4)-2
d) (-12/14)÷1/7)+(-10/7×21/5)
IF ANYONE HELP ME I WILL FOLLOW AND MALE HIM BRAINLIEST PLS HELP ME OUT​

Answer 1

5

2x−2

=5

2x−1

−100

shift 5

2x−2

to the left hand side

Now, Multiply the equation with -1

5

2x−1

−5

2x−2

=100

5

2x−2

(5−1)=100

5

2x−2

=

4

100

25

x−1

=25

( ∵ 5

2x−2

=(5

2

)

x−1

)

now,

x−1=1

x=2