Question

simplify the expression and find the value if x is equal to2 i) 3(x+2)+5x-7​

Answer 1

Answer:

3x+6+5x-7

8x-1

Step-by-step explanation:

first we multiply 3 with x and then 3 with 2 we got 3x+6 now we will add 5x into 3x we got 8 and we minus 6 from 7

Answer 2

As per the data give in the above question.

It is given expression is 3(x+2)+5x-7​

We have to simplify the expression and find the value when x =2.

Thus, simplifying it in simple form we get,

$3(x+2)+5x-7\\3x+6+5x-7\\3x+5x+6-7$

adding similar terms we get,

$8x-1$

when we add +6 with -7 we substract the value and write the sign of highest value,

Now substituting the value of x = 2 in $8x-1$ we get,

$8(2)-1\\16-1\\15$

Hence  when x =2 we get the value as 15.

The simplify expression is 8x-1