7 - 2x
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4 x2
It's 9 x 7 minus 2 x 7. So its 63 - 14.
x2 - 7x = 0The left side is the product of x(x-7).The equation is true if either factor is zero.So the equation has 2 solutions:1). X = 02). X = 7
2 x 4 - x = 7x
"x" would equal 1 because 7/1 is 7 minus 2 equals 5 and 3/1 is 3 plus or + 2 is 5.