"What is the answer? 1. 7x -8; x=+4 2. 5y - 4x; x=2;y=+4 3. 5 (a+b); a=3;b=2"

"What is the answer? 1. 7x -8; x=+4 2. 5y - 4x; x=2;y=+4 3. 5 (a+b); a=3;b=2"
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Guest [Entry]

1. 7x -8 = 7(4) -8 = 202. 5y - 4x = 5(4) - 4(2) = 123. 5 (a+b) = 5 (3+2) = 25I Hope I am Correct :)