exam Maths Puzzle Numerical Ability

I need help solving the following problem. 12x+131=189+3x

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Graph 3x + 2y = 6

This one is throwing me off because the way I figured this one was 3x-2y = 1 or -1 to get rid of the variable to find the cordinance. Can someone please help me with this one. Thanks 15. Geometry. A homeowner wishes to insulate her attic with fiberglass insulation to conserve energy. The insulation comes in 40-cm wide rolls that are cut to fit between the rafte