how do you solve this equation? u=3x + 5, v=6 - 2x and w=9 - 4x. evaluate 1. u+w and 2. v-w

u= 3x + 5, v= 6 - 2x, and w= 9 - 4x
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1 Answer

1. u + w = 3x +5 + 9 - 4x

 = -x + 14.

 

2. v - w = (6 - 2x) - ( 9 - 4x )

= 6 - 2x - 9 + 4x

= -3 + 2x
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