exam Maths Puzzle Numerical Ability

Please help me solve this equation...thank you.
X+Y=2
6X+Y=2

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exam Other Question

use substitution to solve

x=2y+2
2x+3y=11 Can someone please help me with this.

An urn contains 8 balls indentical in every respect except color. There are 4 blue balls, 3 red balls, and 1 white ball.

a) if you draw