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Solve system 9x 2y=39 6x 13y=9

User Ybonda
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1 Answer

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Step 1: Solve the first equation for x in terms of y.

9x = 39 - 2y

x = (39 - 2y)/9

Step 2: Substitute the value of x from the first equation into the second equation.

6((39 - 2y)/9) + 13y = 9

Step 3: Simplify and solve for y.

(234 - 12y)/9 + 13y = 9

(234 - 12y + 117y)/9 = 9

105y + 234 = 81

Step 4: Solve for y.

105y = 81 - 234

105y = -153

y = -153/105

y = -1.4571

Step 5: Substitute the value of y back into the first equation to solve for x.

9x + 2(-1.4571) = 39

9x - 2.9142 = 39

9x = 39 + 2.9142

9x = 41.9142

x = 41.9142/9

x = 4.6571

Therefore, the solution to the system of equations is:

x = 4.6571

y = -1.4571

User Jvdub
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