linear equation in one variable
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I guess it will 45 degree
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17 (22-1) - 2 (9z - 20) / 11z -1 = 5/2
∴ 17*22 - 17*1 - 2*9z - 2*(-20) / 11z - 1 = 5/2
∴ 352 - 17 - 18z + 20 / 11z - 1 = 5/2
∴ 355 - 18z / 11z - 1 = 5/2
∴ 2 (355 - 18z) = 5 (11z - 1)
∴ 710 - 36z = 55z - 5
∴ 710 + 5 = 55z + 36z
∴ 715 = 91 z
∴ z = 715/91
z = 7.8
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