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Q: What is the equation 80 equals 3y plus 2y plus 4 plus 1?

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3y + 2y + 4 + 1 = 805y + 5 = 805y = 75y = 15

3y - 3 = 2y + 5 3y - 2y = 5 + 3 y = 8

Multiply the bottom equation by -1

5y = 3y + 12 5y - 3y = (3y - 3y) + 12 2y = 12 y = 6

5y-2y= 3y+2 5y-2y-3y= 2 0y= 2

6y

2y + 3 = 3y + 9 2y - 3y = 9 - 3 or -y = 6 so y = -6

7x = -3y + 12

Multiply the top equation by 3 and the bottom equation by 2. (-4, 1)

9y-3y=6y; 6y+2y=8y; so your answer is 8y

3x plus 2y - 3 is an expression. There can be no answer to one expression and one linear equation in two variables.

If 3y = 12, 2y = 8

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