Mathematics : Linear Equations in One Variable

Solve for x:

Solve for x:

Solve for x:

A number is such that it is as much greater than 45 as it is less than 75. Find the number.

A number is 20 greater than the sum of its one-third and one-ninth. Find the number.

Divide 40 into two parts such that of one part is equal to of the other.

The numerator of a fraction is 2 less than its denominator. If 2 is subtracted from the numerator and 1 is the added to the denominator then the fraction becomes 2/7. Find the fraction.

After 12 years I shall be 3 times as old as I was 4 years ago. Find my present age.

If 1 is subtracted from both sides of x + 1 = 5, then we have:

• x = 5 – 1

• x + 2 4

• x = 1 – 6

If x – 1 = 6, then x = ?

• x = 6 + 1

• x = 6 - 1

• x = 1 – 6