Basic Algebra

Question Four times a number plus 12 is equal to 40. Find the number.

Solution: Let the number be X.

As per above question.
  

Four times a number plus 12 is equal to 40.

EQUATION
4X+12=40
4X=28
X=7

VERIFICATION

4(7)+12=40.
Hence the number is 7.


Question: 6 less than twice a number is ten more than the number. Find the number.

Solution: Let the number be X.

EQUATION
2X-6=X+10
2X-X=10+6
X=16

VERIFICATION

2(16)-6=26.
Hence the number is 7.

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