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Answer:
4x-3=45
where x=12
Step-by-step explanation:
Through trial and error method we need to find value of x by guessing different values to be x.
You can put any value as x Eg- 9,7,6,13,16
and you need to solve until you get 4x-3=45
One example is x=11
4x-3=45
LHS= (left hand side) 4x-3
RHS= (right hand side) 45
LHS 4x-3 is x=11
(4*11)-3
44-3
41
RHS=45
LHS=RHS
but 41 is not equal to 45
so x value is not 11
x=12
4x-3=45
LHS= (left hand side) 4x-3
RHS= (right hand side) 45
LHS 4x-3 is x=12
(4*12)-3
48-3
45
RHS=45
LHS=RHS
45=45
so x value is 12
You have to do few more examples to fill other boxes and check if LHS=RHS
Hope you will find this helpful
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