Holly O.
asked 01/09/17
Solving a system of linear equations by substitution
Mark M.
answered 01/09/17
Mathematics Teacher - NCLB Highly Qualified
x = 2y + 7
3x - 2y = 3?
3(2y+ 7) - 2y = 3 substitution
6y + 21 - 2y = 3
Can you solve for y?
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Holly O.
01/09/17