Complete equation is 25x + 10 = 7+3+25x
Infinitely many solutions means when every number is solution of the equation.
The given equation is 25x + ? = 7+3+25x
Let missing number be "t"
rewriting the equation , 25x + t = 7+3+25x
For infinitely many solution we have to solve the equation and have to find the value of t
25x + t = 7+3+25x
25x+t = 10+25x
subtracting 25x from both left and right sides
t = 10
putting value of t in the equation
25x + 10 = 7+3+25x is required equation
so, missing number is 10
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