Which of the following has a solution of x =5.
a) 4x -8 -2x = -2
b) 2 - 3(x+4) = 2x +15
c) 8x +2x -10 =5x -35
d) 3x +10 = 6x -5.
Answers
Answered by
0
a) 4x - 8 -2x = (-2)
= 4(5) - 8 - 2(5)
= 20 - 8 - 10
= 12 -10
= 2
b) 2 - 3x + 12 = 2x + 15
= 2 - 3(5) + 12 = 2(5) + 15
= 2 - (15 + 12) = 10 + 15
= 2 - 27 = 25
= -25 = 25
= 4(5) - 8 - 2(5)
= 20 - 8 - 10
= 12 -10
= 2
b) 2 - 3x + 12 = 2x + 15
= 2 - 3(5) + 12 = 2(5) + 15
= 2 - (15 + 12) = 10 + 15
= 2 - 27 = 25
= -25 = 25
Similar questions