Question

(1) За – 7= 12 + 4а and check the solution​

Answer 1

3a - 7 = 12 + 4a---------------(i)

3a - 4a = 12 + 7

-a = 19

therefore, a = -19

check:-

putting value of a in equation (i)

-57 -7 = 12 - 76

-64 = -64

LHS = RHS

Answer 2

The value of A = -19

Step-by-step explanation:

$За – 7= 12 + 4а \\ \\ 3a - 4a = 12 + 7 \\ \\ - a = 19 \: \: \: \: \: or \: \: \: \: \: a \: = - 19$

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