Question

Q12. In the given figure, find the value of x. (Give reasons wherever needed)
(5x + 9)*
(6x - 40)
(3x + 15​

Answer 1

$\huge\bold\green{ solution }$

this is a straight line so,

$(6x - 40) + (5x + 9) + (3x + 15) = 180 \\ \\ 14x - 16 = 180 \\ \\ 14x = 180 + 16 \\ \\ x = \frac{196}{14} \\ x = 14$

now, x= 14 put the place of

$5x + 9 \\ 5 \times 14 + 9 \\ = > 70$

$3x + 15 \\ \\ 3 \times 14 + 15 \\ \\ 42 + 15 = 57$

$6x - 40 \\ 6 \times 14 - 40 \\ \\84 - 40 = 44$