Question

simplify the expression and find the value if x is equal to 2 .
1 ) x+7+4 (x-5) 2 ) 3(x+2)+5x-7
3) 6x5 (x-2) 4) 4(2x-1)+3x+11​

Answer 1

Answer:

From the given details we get to know that x = 2

We have,

= x + 7 + 4x – 20

= 5x + 7 – 20

On substituting the value of x in the given algebraic equation and simplifying we get

= (5 × 2) + 7 – 20

= 10 + 7 – 20

= 17 – 20

= – 3

(ii) From the given details we get to know that x = 2

We have,

= 3x + 6 + 5x – 7

= 8x – 1

On substituting the value of x in the given algebraic equation and simplifying we get

= (8 × 2) – 1

= 16 – 1

= 15

(iii) From the given details we get to know that x = 2

We have,

= 6x + 5x – 10

= 11x – 10

On substituting the value of x in the given algebraic equation and simplifying we get

= (11 × 2) – 10

= 22 – 10

= 12

(iv) From the given details we get to know that x = 2

We have,

= 8x – 4 + 3x + 11

= 11x + 7

On substituting the value of x in the given algebraic equation and simplifying we get

= (11 × 2) + 7

= 22 + 7

= 29

Answer 2

Step-by-step explanation:

simplify the expression and find the value if x is equal to 2 .

1 ) x+7+4 (x-5)

=2+7+4(2-5)

=13×(-3)

=-39