System of equations - practice problems
Number of problems found: 1773
- The sum 38
The sum of two decimal numbers is four. Their difference is one. What are the numbers?
- X-2y 2541
x-2y + 2z = -1 2x + y-z = 3 3x + 2y + z = 2
- Solve 6
Solve the following equations: x + 2y - z = 3 3x + 4y + z = 5 3x - y - z = 5
- Null points
Calculate the roots of the equation: 3 |x +4| +3 |x +5| +2 |x +4| = 30
- Two numbers
Find two numbers whose difference and the ratio are 2.
- System: 4681
Solve the system: (x + 5) (y-2) = (x-1) (y + 1) (x + 1) (y + 1) = (x + 5) (y-1)
- Hard equations
If a<b and c<d and a+b all/2 = c and c+d all/2 = b and if d-a = 60, what is b-c?
- If twice
If twice the daughter's age is added to the mother's age, the sum is 56. but if twice the mother's age is added to the daughter's age, the sum is 82. find the age of the mother and daughter.
- Consecutive 7556
The sum of three consecutive integers equals three times the middle number. Specify these numbers.
- Equations: 2965
Solve a system of equations: x + 4y = -1 y = -1
- The sum 16
The sum of A and B is 36. The difference between A & B is 8. find the larger number of A.
- Find d 2
Find d in an A. P. whose 5th term is 18 and 39th term is 120.
- Isosceles trapezoid
Perimeter of the isosceles trapezoid is 48 cm. One side is two times greater than the second side. Determine the dimensions of the trapezoid.
- Determine 18613
A number twice less than y is 12 less than y. Determine the size of the number y.
- Determine 5117
Determine x, y: x + y = 10 x: y = 10
- Equations: 2962
Solve a system of equations: x + y = -1 x + 5y = 3
- Angles - triangle
Find the measure of the angles of the triangle ABC, if: the measure of the angle A=the measure of the angle C, and the measure of the angle B =½ of the measure of the angle C.
- Conjugate equation
Find the numbers of a and b; if (a - bi) (3 + 5i) is the Conjugate of (-6 - 24i)
- The sum
The sum of the two numbers is 69, and the difference is 11. Which numbers are they?
- The sum 9
The sum of two integers is 4. Their difference is 8. What are these two integers?
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