Book Maths Puzzle Co-ordinate geometry

Hello, how do i graph the equation 2x+3y=6.

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Book Other Question

Shawn needs to have a 90% average for his exam grade to make an A for the quarter there are three tests in the quarter and his first two exams percentage were 91%,87% what score must he get on the third exam to obtain a 90% average?

90 x 3 = 270

270-87 - 91 = 92 A farmer raises wheat and oats on 180 acres. She plants wheat on 20 more acres than she plants oats on. How many acres of each crop does the farmer plant? and Enrico says, \"I\'m Thinking of 2 mystery numbers. One number is 3 times the other. The sum of the two numbers is 48\". What are Enrico\'s mystery numbers? Please help me!