Question

expand -3 (4x+9)=21​

Answer 1

Answer:

x is -4

Step-by-step explanation:

-3 (4x+9)=21​

-12x - 27 = 21

-12x = 21 + 27

-12x = 48

x = 48/-12

x = -4

Answer 2

Step-by-step explanation:

$( - 3 \times 4x) + ( - 3 \times 9) = 21$

$- 12x - 27 = 21$

$- 12x = 21 + 27$

$- 12x = 48$

$- x =48 \div 12$

$- x = 4$

$x = - 4$