Mathematics: Solve the system using elimination. 3x – y = 28 3x + y = 14

ummStep-by-step explanation:...

Solve the system using elimination. 3x – y = 28 3x - id32834565819, nxusasmangaliso8780

emmanuel96

15.01.2022

The value of x=10.5 and y=3.5.

Step-by-step explanation:

Given : Equations 3x-y=28 and x+y=14

To find : Solve the system using elimination?

Solution :

Equitation 1 - 3x-y=28

Equation 2 - x+y=14

Eliminate y from both the equation by adding them,

3x-y+x+y=28+14

4x=42

$x=\frac{42}{4}$

x=10.5

Eliminate x by multiplying (2) by 3 and subtract from (1),

3x-y-3x-3y=28-42

-4y=-14

$y=\frac{14}{4}$

y=3.5

Therefore, The value of x=10.5 and y=3.5.

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