exam
Maths Puzzle
Numerical Ability
solve the system of equation using the substitution method. 4x + y = 4
2x + 8y = 0
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exam Other Question
determine whether the equation is an identity, a conditional equation, or an inconsistant equation.
(-7x+2)/3 + 4/3 = (-7x/2)
How do I solve each system by either elimination or substitution?
5x + 2y = 1
x - 3y = 7
My second problem is the same
y = 2x + 4
x - y = 11