Note: This chapter deals with sets of linear equations

STEP 4: Compute 2 equations for y and z. Sub into equation 3:-x+2y+2z = 29-1+2y+2z = 29. 2y+2z = 29+1. 2y+2z = 30. Eq2 and Eq3 are now 2 equations in 2 unknowns begin procedure again. 2y-2z = 2. 2y+2z = 30. STEP 1: Express in terms of same value of one variable (2y) Equation 1: 2y = 2+2z. Equation 2: 2y = 30-2z. STEP 2: Substitute value of eq1 ... ................
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