2 Answers

Rong Nguyen · Answer 1 · 2020-08-02T11:39:01+0000

Answer:

$\boxed{\bold{x=-3}}$

Explanation:

Multiply both sides by 10

$\bold{0.7x\cdot \:10-1.4\cdot \:10=-3.5\cdot \:10}$

Refine

$\bold{7x-14=-35}$

Add 14 to both sides

$\bold{7x-14+14=-35+14}$

Simplify

$\bold{7x=-21}$

Divide both sides by 7

$\bold{(7x)/(7)=(-21)/(7)}$

Simplify

$\bold{x=-3}$

Regards,

Mordancy

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