Question

3x +12 = 2x - 4

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Answer 1

Answer:

3x +12 = 2x - 4

Subtracting 2x from both sides

$\implies$ 3x + 12 - 2x = 2x - 4 - 2x

$\implies$ x + 12 = - 4

Subtracting 12 from both sides

$\implies$ x + 12 - 12 = - 4 - 12

$\implies$ $\boxed{\sf{x = - 16}}$

Answer 2

Answer:

3x +12 = 2x - 4

Subtracting 2x from both sides

= 3x - 2x + 12 = 2x - 4 - 2x

= x + 12 = - 4

Subtracting 12 from b.s.

x + 12 - 12 = - 4 - 12

x = - 16