exam Maths Puzzle Numerical Ability

Please show me how to solve the equation and check the answer. Thanks!

0.05(z+20)=0.1z-0.5

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exam Other Question

If 8 lb. 12 oz. of fruit were to be divided among eight people, how much would each receive? Rewrite the linear equation 36 - 9y = 117x in the form y = mx + b. From the new equation, determine the slope and the y-intercept.