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Show that (2, 1) is a solution of the system of equations.
x + 3y = 5,
y = –x + 3
Substitute (2, 1) into x + 3y = 5 to get
.
Simplify the equation to get
.
Substitute (2, 1) into y = –x + 3 to get
.
Simplify the equation to get
Sagot :
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