I'll assume that x is in radians - if not, adjust the answer as necessary. If tan(2x + 7) = - 6, then 2x + 7 = pi - 1/41 or 2pi - 1.41 (using just 3 figures) so 2x + 7 = 1.93 or 4.87; subtract 7 and 2x = - 5.07 or - 2.13 so divide by 2 and x = - 2.535 or - 1.065.
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Verified answer
arctan(-6) = -1.40564765
2x+7 = -1.40564765
minus 7
divide by 2
x= -4.2028
I'll assume that x is in radians - if not, adjust the answer as necessary. If tan(2x + 7) = - 6, then 2x + 7 = pi - 1/41 or 2pi - 1.41 (using just 3 figures) so 2x + 7 = 1.93 or 4.87; subtract 7 and 2x = - 5.07 or - 2.13 so divide by 2 and x = - 2.535 or - 1.065.
take the inverse of tan-6 and equal it to 2x+7 and solve the equation
Idk