Question

Consider the following system of linear equations: 4x+2y=25 4x-y=-5 If the value of y is 10 what is the value of X for this system: 1.1.25 2.11.25 3.1.45 4.5

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ANSWERED
asked 2021-05-03
Consider the following system of linear equations:
4x+2y=25
4x-y=-5
If the value of y is 10 what is the value of X for this system:
1.1.25
2.11.25
3.1.45
4.5

Answers (1)

2021-05-05
Step 1
Given the system of equations
4x+2y=25
4x-y=-5
If value of y is 10 then we need to find the value of x.
Now,
If value of y is 10 then it must satisfy to both equations
By putting the value of y in equation first then we get
\(\displaystyle{4}{x}+{2}\times{10}={25}\)
4x+20=25
4x=25-20
4x=5
\(\displaystyle{x}={\frac{{{5}}}{{{4}}}}\)
x=1.25
0
 
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