If 0.7x = 0.4 + 3.9, then the value of x is 43/7 – InterviewSolution

1.

If 0.7x = 0.4 + 3.9, then the value of x is 43/7

Answer»

$0.7x = 0.4 + 3.9$

$\implies0.7x = 4.3$

$\purple{ \sf{multiplying \: equation \: by \: 10 : }}$

$\implies 10(0.7x) = 10(4.3)$

$\implies 7x= 43$

$\orange{ \therefore x = \frac{43}{7} }$

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