Question

How do you solve 2.1x + 45.2 = 3.2 - 8.4x

Answer 1

x(2.1 + 8.4 ) = 3.2 - 45.2
10.5 x = -42
x =-4

Answer 2

how did you get the answer though

Answer 3

all you have to do is add coefficents of the same variiable.

Answer 4

so add 8.4x to both sides and you get 10.5x+45.2=3.2

Answer 5

oops wait no i mean 10.5=-42

Answer 6

10.5 as a fraction is 21/2

Answer 7

oops again so sorry. 10.5x=-42
so 21/2x=-42
multiply both sides by 2
21x=-84
and divide both sides by 21.
x=-4

Answer 8

is that good?

Answer 9

thanks!