exam
Maths Puzzle
Numerical Ability
8z-7=3z-7+5z
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exam Other Question
please help
Use substitution to solve for x and y
3x - y = 3
y = 2x - 1
how do you solve two step equations? i am in ninth grade, and to tell you the truth, i am not very good at math but i do have a b- for a grade. my name is nikol so if you can help me that would be great!!! thanks