Question

Sctve the system using any x+y=1.8 3x+y=1.4

Answer 1

To solve the given system of equations (x + y = 1.8, 3x + y = 1.4), the elimination method is used, resulting in the solution x = -0.2 and y = 2.0. The solution to the system is x = -0.2 and y = 2.0.

Step-by-step explanation:

The student is asking to solve a system of linear equations:

• x + y = 1.8
• 3x + y = 1.4

To solve the system, one approach would be to use the substitution or elimination method. Let's use the elimination method:

1. Align the equations:
2. x + y = 1.8 (Equation 1)
3. 3x + y = 1.4 (Equation 2)
4. Subtract Equation 1 from Equation 2:
5. 3x + y - (x + y) = 1.4 - 1.8
6. 2x = -0.4
7. x = -0.2
8. Substitute x into Equation 1 to find y:
9. -0.2 + y = 1.8
10. y = 2.0

The solution to the system is x = -0.2 and y = 2.0.