Question 449065
3[-78-(50-68)]


3[-78-(-18)]


3[-78+18]


3[-60]


-180



So 3[-78-(50-68)] = -180



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0.3x+8<=0.7x-5


3x+80<=7x-50... Multiply EVERY term by 10 to move the decimal point 1 spot to the right.


80+50<=7x-3x


130<=4x


130/4 <= x


x >= 130/4


x >= 65/2