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.
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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