What is the solution to this equation? 2x + x - 11 + 3 - 7x = 15
A. x = 23
B. x= -23
O c. x-
O
D. x= -1
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Solve this system of equations. 12x − 18y = 27 4x − 6y = 10

Set up and solve a proportion for the following application problem. if 55 pounds of grass seed cover 404 square feet, how many pounds are needed for 7272 square feet?

How many 3-digit numbers can you write using only digits 1 and 7? (of course, digits can repeat.) how many 3-digit numbers can you write using only digits 1 and 7? (of course, digits can repeat.)