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The area is the side x side = 49 side = 7cm ( sqrt of 49) perimeter is some of sides = 7 + 7 + 7 + 7 = 28 cm
3x-7=-7 _______ +7 +7 add 7 to each side 3x=0 -3 -3 subtract 3 from each side x=-3
If the hypotenuse is equal to 7 and one side is equal to 4, the third side is: 5.745
7n + 7 = 12Subtract 7 from each side of the equation :7n = 5Divide each side by 7 :n = 5/7
9x + 7 = 5x + 35Subtract 5x from each side of the equation:4x + 7 = 35Subtract 7 from each side:4x = 28Divide each side by 4:x = 7