Complementary angles 2

Two complementary angles are (x+4) and (2x - 7) find the value of x

Result

x =  31

Solution:

(x+4) + (2x - 7) = 90

3x = 93

x = 31

Calculated by our simple equation calculator.

Leave us a comment of this math problem and its solution (i.e. if it is still somewhat unclear...): Be the first to comment! To solve this verbal math problem are needed these knowledge from mathematics:

Do you have a linear equation or system of equations and looking for its solution? Or do you have quadratic equation? See also our right triangle calculator. See also our trigonometric triangle calculator.

Next similar math problems:

1. Find the 9 Find the missing angle in the triangle and then name triangle. Angles are: 95, 2x+15, x+3
2. Internal angles One internal angle of the triangle JAR is 25 degrees. The difference is the size of the two other is 15°. Identify the size of these angles.
3. Isosceles trapezoid v3 In an isosceles trapezoid ABCD is the size of the angle β = 81° Determine size of angles α, γ and δ.
4. Plane II A plane flew 50 km on a bearing 63degrees20 and the flew on a bearing 153degrees20 for 140km. Find the distance between the starting point and the ending point
5. Type of triangle How do I find the triangle type if the angle ratio is 2:3:7 ?
6. Chord Point on the circle is the end point of diameter and end point of chord length of radius. What angle between chord and diameter?
7. Diagonal Can a rhombus have the same length diagonal and side?
8. Broken tree The tree is broken at 4 meters above the ground and the top of the tree touches the ground at a distance of 5 from the trunk. Calculate the original height of the tree. The ladder has a length 3.5 meters. He is leaning against the wall so that his bottom end is 2 meters away from the wall. Determine the height of the ladder.
10. Obtuse angle Which obtuse angle is creating clocks at 17:00?
11. Center traverse It is true that the middle traverse bisects the triangle?
12. Unknown number Identify unknown number which 1/5 is 40 greater than one tenth of that number.
13. Equation Solve the equation: 1/2-2/8 = 1/10; Write the result as a decimal number.
14. Simple equation Solve for x: 3(x + 2) = x - 18
15. Boys and girls There are 48 children in the sports club, boys are 10 more than girls. How many girls go to the club?
16. Fractions Three-quarters of an unknown number are 4/5. What is 5/6 of this unknown number?
17. Equation with fractions Solve equation: ? It is equation with fractions.