Question

answer me fast i mark them as brainlieat​

Answer 1

the equations formed will be:

2a+b+8 = 4a-b
2b = a+4

now the values of a and b
4a-2a = b+b+8
2a = 2b+8
2a = 2(b+4)
a = b+4

in the second equation
2b= a+4
a = 2b-4
now,
2* (b+4) + 2*(b-4) = 360
2*((b+4)(b-4)) = 360
((b+4)(b-4)) = 180

${b}^{2} - 4b + 4b \: - 16 = 180$
now ,
${b}^{2} - 16 = 180$
${b}^{2} = 196(180 + 16)$

$b \: = \sqrt{196}$
$\: b \: = 14$
now putting the value of b in the equation.
a = 2b-4
a = 2*14-4
a = 28-4
a = 24