simplify each of the following expressions by using algebra dics .
a) 4x - 3x
b) 4x - (-3x)
c) -4x - 3x
d) -4x - (-3x)
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Answer:
a) 4x-3x
= 1x or x
b) 4x -(-3x)
= 4x +3x
= 7x
c) -4x -3x
= -7x
d) -4x -(-3x)
= -4x+3x
= -1x
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