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Rus_ich [418]
3 years ago
8

X-(4x-7)=5x-(x+21) This is for my math class on homework

Mathematics
1 answer:
patriot [66]3 years ago
3 0
X-(4x-7)=5x-(x+21)
x-4x+7=5x-x-21
-3x+7=4x-21
      -7      -7
-3x=4x-28
-4x  -4x
-7x=-28
/-7  /-7
x=4
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