Question

2 x minus y + 5 and x minus 5 Y - 7 find the value if X equal to 2 and Y equal to -1​

Answer 1

Answer:

10

Step-by-step explanation:

(2x - y + 5) + (x - 5y - 7)

= 2*2 -(-1) + 5 + 2 -5*(-1) - 7 ('*' is multiplication sign)

= 4 + 1 + 5 + 2 + 5 -7

= 5 + 5 + 7 - 7

= 5 + 5

= 10

Answer 2

Answer:

$\green{\huge{\underline{Question:-}}} \\ \\ {\large{Find\:the\:value\:of:-}} \\ i) 2x-y-7 \\ ii) x-5y-7 \\ {if\:X=\:2\:and\:Y=-1} \\ \\</p><p></p><p>\blue{\huge{Answer:-}} \\ \\ i) 2x-y+5 \\ (putting\:the\:value) \\=> 2× (x=2) - (y=-1) + 5 \\ => 2×2-(-1) +5\\=> 4+1+5\\=>10 \\ \\ ii) x-5y-7\\(putting\:the\:value)\\=>(x=2) -5×(y=-1) -7\\ =>2-5×(-1) -7\\ =>2+5-7\\=>0 \\</p><p></p><p>{\huge{\green{Thank\:You:)}}}</p><p></p><p></p><p></p><p>$