Simplify the expression and find the value if x=2
x+7+4x-5
Given x+7+4x-5
Put x=2
Consider
x+7+4x-52+7+42-59+4-39-12-3
Hence, x+7+4x-5 is -3
Question 7 (ii)
Simplify these expression and find their values if x = 3, a = -1, b = -2: 2 - 8x + 4x + 4
Simplify the expressions and find the value if x is equal to 2
(i) x + 7 + 4 (x − 5) (ii) 3 (x + 2) + 5x − 7
(iii) 6x + 5 (x − 2) (iv) 4 (2x −1) + 3x + 11