Question

X+10y=105, x+15y=115 solve by elimination​

Answer 1

$x + 10y = 105$•••••(1)

$x + 15y = 115$•••••(2) [subtracting]

$- \:\:\:\:\:\: - \:\:\:\:\:\: -$

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$<strong> </strong><strong> </strong> -5y = -10$

$y = 2$ ...ans...

put y = 2 in equ-----(1)

so,

$x + 10×2 = 105$

$x + 20 = 105$

$x = 105 -20$

$x = 85$ ....ans...