exam Maths Puzzle Numerical Ability

Solve each system by the substitution method. determine whether the equstions are independent, dependent, or inconsistent.

x=2y-7
3x+2y=-5

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exam Other Question

5 IS TO 12 AS X IS TO 48. WHAT DOES X EQUAL? 2x+4y=42 2x+3y=36(Cramer Rule)
Find the determinant of the given matrix
[1 0 6 -1]
[-6 0 2 4]
[3 0 6 -2]
[3 4 -3 3]
Write the augmented matrix for the system
9x+2y+9z=8
8x+