Question

Simultenaus equations​

Answer 1

Answer:

In mathematics, a set of simultaneous equations, also known as a system of equations or an equation system, is a finite set of equations for which common solutions are sought. An equation system is usually classified in the same manner as single equations, namely as a:

System of linear equations,

System of nonlinear equations,

System of bilinear equations,

System of polynomial equations,

System of ordinary differential equations,

System of partial differential equations, or a

System of difference equations

Answer 2

Step-by-step explanation:

25x – 15y = 80. 12x -15y = 15. 13x = 65. x = 5. We then subtract the two equations which "eliminates" the -15y. ...

(5 x 5) - 3y = 16. 25 - 3y = 16. -3y = 16 - 25. -3y = -9. y = 3. ...

4x – 5y = 5. (4 x 5) - (5 x 3) = 5. 20 - 15 = 5. Finally, check the values for x and y in the other equation.