exam Maths Puzzle Numerical Ability

How do I do a linear equation of

a+d=100
1.00a+1.50=120

can you give me the steps to do so.

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exam Other Question

Help I cant figure these out. Please break it down for me so i can understand the process for solving. Thanks.


1. Simplify and evaluate:


(x7y-4z0/5-2x3y-8z-9)2
Evaluate xy/yz if x = 12, y = -5/4, and z = -4/5