exam Maths Puzzle Numerical Ability

2a+7=5

Not sure if this is an equation or not can you tell me please.

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exam Other Question

John Roberts has $42,180.53 in a brokerage account, and he plans to contribute an additional $5,000 to the accout at the end of every year. The brokerage account has an expected an In a standared coordinate system, the graph of the equation y=-3x+6 is
A. not a line
B. a vertical line.
C. a horizontal line.
D. a line rising to the right.
E. a line falling to the right.