exam
Maths Puzzle
Numerical Ability
solve each systems by substitution:
4x-12y=5
-x+ 3y=-1
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exam Other Question
find a common solution for each system of equations:
y=3x+5
y=-5x-3
can some one help me find the GCF in polynomials? I have never seen this before!
1. 12a^3b^2,18^2b^3,6a^4b^4
2. (6y^2-3y)(y+7)