Question

if x= -4 and y = 3 then find tbe value of 7x - 2x +1​

Answer 1

Answer:

x-y =4 and x+y=6, now find out the value of xy=?

Let we assume that, x-y =4——-(1)

x+y=6———(2)

Two equation are generated by assuming them, now just add up both the equation each other we got,

2x=10,

Answer 2

Answer:

• -19

Step-by-step explanation:

❁ Hello! ❁

7x - 2x + 1 => 7 × (-4) - 2 × (-4) + 1 =

= 7 × (-4) - 2 × (-4) + 1 =

= -28 - 2 × (-4) + 1 =

= -28 + 8 + 1 =

= -20 + 1 =

= -19

Success! ☺️