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
Linear Equations
System of Equations
Substitution Method

Formulas

-2x + y = 6
x - y = 1

Theorems

Substitution method for solving systems of linear equations

Suitable Grade Level

Grades 8-10