Question

= – 1 is a solution of the equation

(a) x – 5 = 6                (b) 2x + 5 = 7                (c) 2(x – 2) + 6 = 0                (d) 3x + 5 = 4​

Answer 1

c) 2(x-2)+6=0

2(x-2)+6=0

Distribute

2x - 4 + 6 = 0

Combine like terms -4 + 6

2x + 2 = 0

Subtract both sides

2x = -2

Divide both sides

x = -1