Math Problem Statement
Adria has the following system of equations on her math homework.
‒2x+y=6 x−y=1
What is the value of x in the solution to this system of equations? A.7
B.‒7
C.8
D.‒8
Solution
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Math Problem Analysis
Mathematical Concepts
Algebra
Systems of Linear Equations
Substitution Method
Formulas
y = x - 1 (substitution)
-2x + (x - 1) = 6 (solving system of equations)
Theorems
Linear System Solving Techniques
Suitable Grade Level
Grades 8-10