# For Exercise, solve the system of equations usinga. The substitution method or the addition method b. Gaussian elimination c.Gauss-Jordan elimination d. The inverse of the coefficient matrix .e. Cramer’s rule .x =-3y-10-3x-7y=22

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For Exercise, solve the system of equations using

a. The substitution method or the addition method

b. Gaussian elimination

c.Gauss-Jordan elimination

d. The inverse of the coefficient matrix .

e. Cramer’s rule .

x =-3y-10

-3x-7y=22

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Step 1

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Step 2

Given: solve the system of equations using

1. The substitution method or the addition method
2. Gaussian elimination
3. Gauss-Jordan elimination
Step 3

(a) using substitu... help_outlineImage TranscriptioncloseSubstitute x = -3y – 10 in equation (ii) -3.x – 7y = 22 -3(-3y – 10) – 7y = 22 9y +30– 7y = 22 2y = 22 – 30 2y = -8 y =-4 Now, substitute y=-4 in equation (i) x = -3y – 10 x = -3(-4) – 10 x = 12 – 10 x =2 fullscreen

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### Equations and In-equations 