Question

A² = b²
b-a=-12
what is the value of a?

Answer 1

The final answer is a= A+12.

Step-by-step explanation:

$\ Given \ value:\\\\\ A^2= b^2 \\\\b-a= -12\\\\\ Find:\\\\a= ?\\\\\ Solution:\\\\ A^2= b^2 .....(i) \\\\ b-a= -12\\\\b= -12 +a \\\\\ put \ the \ value \ of \ b \ in \ equation \ (i) \\\\\ Equation: \\\\ A^2= b^2 .....(i) \\\\A^2 = ((-12)+a)^2 \\\\\rightarrow A = -12 +a \\\\\rightarrow A +12 = a \\\\\rightarrow a = A +12$

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