2. Solving Systems Using Substitution
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(31/4,-1/8)
When solving a system of equations using substitution, there are three steps.
(I):y= 12x-4
(I):Distribute 2
(I):Add terms
(I):LHS+8=RHS+8
(I): .LHS /4.=.RHS /4.
(II):x= 314
(II):Multiply fractions
(II): a = 8* a/8
(II): Subtract fractions
(II): Rearrange equation
(I), (II): x= 31/4, y= -1/8
(I), (II): Multiply
(I): a/b=.a /2./.b /2.
(II): a = 8* a/8
(I), (II): Subtract fractions
(I): Calculate quotient