exam Maths Puzzle Numerical Ability

hw to get the equation of linear equation?

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exam Other Question

Solve the equation:

sqrtx+4 = 3

I tried to keep this seperated because the square root is x + 4.

I am going to assume I need to make X equal the 3 leaving me with this:
X= -1
sqrt-1+4 = 3
Is this the right process? I have to write the inverse operation performed on each variable. 35p