Question

Is it all right and I need help on EVALUATE EXPRESSIONS. PLZ help me

Answer 1

(1)   12,    (2)   5,    (3)   13,    (4)    30

Step-by-step explanation:

(1) Given expression 2x.

Substitute x = 6 in expression 2x.

⇒ 2 × 6 = 12

(2) Given expression 8 + 3 – x

Substitute x = 6 in expression 8 + 3 – x.

⇒ 8 + 3 – 6 = 11 – 6 = 5

(3) Given expression 6 + 7 – 6 + x

Substitute x = 6 in expression 6 + 7 – 6 + x.

⇒ 6 + 7 – 6 + x = 6 + 7 – 6 + 6 = 13

(4) Given expression 5x

Substitute x = 6 in expression 5x.

⇒ 5× 6 = 30