exam Maths Puzzle Numerical Ability

Solve.

sqrt( 7x+46 ) = x + 4

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exam Other Question

hello

how do i determine whether each system is independent, inconsistene, or dependent:

y = 3x - 5
y = 3x + 2

thank you How do you write 10.9 in Roman Numerals? I know how to write the 10, but am unsure of how the decimals are done.