2. Solving Systems Using Substitution
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(1,3)
When solving a system of equations using substitution, there are three steps.
(I): LHS+x=RHS+x
(I): LHS-2y=RHS-2y
(I): LHS-5=RHS-5
(I): Rearrange equation
(II):x= 2y-5
(II):Distribute 3
(II):Add terms
(II):LHS+15=RHS+15
(II): .LHS /13.=.RHS /13.
(I):y= 3
(I): Multiply
(I): Subtract term
(I), (II): x= 1, y= 3
(I), (II): Multiply
(I), (II): Add and subtract terms