Algebra

Solve for x: 0.2x + 0.5 = 1.3

A father is 30 years older than his son. In 5 years, he will be 4 times as old as his son. Son's age?

For what value of k will the system 2x + 3y = 7 and 4x + ky = 14 have infinite solutions?

If (x, 2) is a solution to 3x - 4y = 10, find x.

Solve for x: (x-3)/2 + (x+1)/3 = 4

The sum of two numbers is 25 and their difference is 7. Find the numbers.

Which point lies on the line 2x - 3y = 6?

If 3x + 2y = 12 and y = 3, what is x?

Solve for x: 5(x - 2) - 3(x + 1) = 1

A taxi charges Rs 50 as a fixed fee and Rs 15 per km. If total fare is Rs 200, find distance.

Find 'm' if the line y = mx + 2 passes through (1, 5).

Two lines a1x + b1y = c1 and a2x + b2y = c2 are parallel if:

Solve for x: x/2 - x/3 = 1

The sum of a number and its double is 21. What is the number?

Solve: 4x + 3y = 24 where x = 0. What is y?

If 2x + 5 = 5x - 4, what is x?

A pen and a notebook cost Rs 45. The notebook costs twice as much as the pen. Price of pen?

Find the value of x: 3/(x-1) = 1

Solve for x and y: x + y = 5, 2x + y = 7

The difference between two supplementary angles is 20 degrees. Find the larger angle.