It is an equation and the value of x is 7
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7/8x = 21 7 = 21*8x 168x = 7 x = 7/168 = 1/24
Subtract: 2x = -20Divide by 2: x = -10
9x-19=6x+2 so 3x=21 and x=7
7. 8x-40=2x+2 4x-20=1x+1 3x-21=0 3x=21 therefore x=7
8x=7x-7 x=-7