Question

solve for x
1) -27 - 21x =84
2) 2(3x+4) = 16
3) 9x- 22=1​

Answer 1

Answer:

1)-27-21x=84=>X=-111/21

2)2(3x+4) = 16=>X=4/3

3)9x- 22=1=>X=23/9

Answer 2

The correct answers will be"111/21, 4/3, 23/9".

Step-by-step explanation:

1.

$The \ given \ equation \ is:\\-27-21x=84\\On \ adding \ "21x" \ both \ sides,we \ get\\-27-21x+21x=84+21x\\-27=84+21x\\On \ subracting \ "84" \ from \ both \ sides,we \ get\\-27-84=84+21x-84\\-111=21x\\x=\frac{111}{21}$

2.

$The \ given \ equation \ is:\\2(3x+4)=16\\6x+8=16\\On \ subtracting \ "8" \ from \ both \ sides,we \ get\\6x+8-8=16-8\\6x=8\\x=\frac{8}{6}\\x=\frac{4}{3}$

3.

$The \ given \ equation \ is:\\9x-22=1\\On \ adding \ "22" \ both \ sides,we \ get\\9x-22+22=1+22\\9x=23\\x=\frac{23}{9}$