2t+3 = -11
Subtract 3 from both sides:
2t+3-3 = -11-3
2t = -14
Divide both sides by 2 in order to find the value of t:
t = -7
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3t + 7 = 2t - 5 3t = 2t - 12 t = -12
5t + 2 = 3t - 2t + 5 Collect like terms 5t - 3t + 2t = 5 - 2 4t = 3 t = ¾ Check: 5 x 3/4 = 3¾ + 2 = 5¾; 3x¾- 2x¾ + 5 = 5¾ QED
3tan (2t) = sqrt(3) tan (2t) = sqrt(3)/3 = 0.577 from tangent tables, 2t = 30 degrees t = 15 degrees
T+(3-2t)=4t+1. Assuming the two T's , T and t are the same variable, lets proceed. t+(3-2t)=4t+1 3-t=4t+1 2-t=4t 2=5t last step is yours
R = s + 2t; s = 3tR = 3t + 2tR = 5t