exam Maths Puzzle Numerical Ability

How would I solve this:
-7x+1+8x=x+1

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exam Other Question

Instead of spending his additional earnings each month, Michael chooses to open a savings account offering 3% interest, accured monthly. Calculate the amount of money Michael iwll Bobby has $167 in his savings account. He withdraws $115, deposits $53, and then withdraws $95. Which shows the ending balance of his account?

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