8'X 30"
Change feet to inches: 8'X12" = 96"
96"X30" = 2880"2
2880"2 = 20'2
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8x + 30 = 5xSubtract 30 from each side:8x = 5x - 30Subtract 5x from each side:3x = -30Divide each side by 10:x = -10
8x=7x-7 x=-7
10
8x+7=55 8x=55-7 8x=48 x=48/8 x=6
1