SOLUTION: evaluate 28z-15=15

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Question 56636This question is from textbook
: evaluate 28z-15=15 This question is from textbook

Answer by funmath(2933) About Me  (Show Source):
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evaluate
28z-15=15
28z-15+15=15+15
28z=30
28z%2F28=30%2F28
z=30%2F28
z=%282%2A15%29%2F%282%2A14%29
highlight%28x=15%2F14%29
Check by substituting 15/14 in for x in the original equation and see if both sides =.
28%2815%2F14%29-15=15
%2828%2F14%29%2815%29-15=15
2%2815%29-15=15
30-15=15
15=15 We're right!!!
Happy Calculating!!!