What is the solution to the equation 3(x - 1) – 2(2x + 1) = 8(x - 1)?
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3(x-1)-2•(2x+1)=8(x-1)
3x-3-4x+2=8x-8
3x-3-4x+2-8x+8=0
-9x+7=0
-9x=-7
x= 7/9

Neither is the answer

Hello! i hope this
since the cosine is the ratio of the adjacent side to the hypotenuse, you can see that cos 60° = ½. answer. according to the property of cofunctions (topic 3), sin 30° is equal to cos 60°. sin 30° = ½.