exam Maths Puzzle Numerical Ability

Solve for x

x^2+4x+4=7

Thanks in advance.

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exam Other Question

For the systems of linear equations in questions 1-3
- Determine how many solutions exist
- Use either elimination or substitution to find the solutions (if any)
- Graph the two Could someone help me on this problem?

I need to rewrite the equation 4x- 10y = 11 as a function of x.

Thank you,
Sher