exam Maths Puzzle Numerical Ability

7. Solve the following system of equations using substitution, elimination, or graphing. Please and Thank you.

y=2x+6
2y+3x=5

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exam Other Question

determine which two equation represent perpendicular lines.

a) y=4/7x-3
b) y=3x-4/7
c) y=-1/3x+4/7
d) y=1/3x-4/7 Enrique put 12% of his monthly paycheck in an IRA. If he invests $72 in his IRA, how much was his paycheck?