Add the following algebraic expression using both horizontal and verti – InterviewSolution

1.	Add the following algebraic expression using both horizontal and vertical methods 2x+9y-7z;3y+z+3x;2x-4y-z
Answer» -STEP EXPLANATION:VERTICAL METHOD 2x+9y-7z3x+3y+z2x-4y-z _______7x+8y-72Horizontal Method2x+9y−72+3x+3y+2+2x−4y−2=7x+8y−721=2Both ANS are same.

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