(d) 0.16 (5x - 2) = 0.4x + 7 give this verification. its ans. is 18.3
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0.16(5x-2)= 0.4x+7
0.8x-0.32= 0.4x+7
0.8x-0.4x= 7+0.32
0.4x= 7.32
x= 7.32/0.4
x= 18.3
hence , verified
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