Question

.12(x-10)-.05(x-30)=-1.80

Answer 1

Start off by distributing

Answer 2

What do you get when you do this

Answer 3

.12x-1.2-.05x-1.5=-1.80

Answer 4

close

Answer 5

-.05(x-30)

-.05(x)-.05(-30)

-.05x+1.5

Answer 6

So

.12(x-10)-.05(x-30)=-1.80

becomes

.12x-1.2-.05x+1.5=-1.80

Answer 7

What's next?

Answer 8

.05 on both sides

Answer 9

how about combining like terms

Answer 10

0.12x - 0.05x

becomes

0.07x

Answer 11

-1.2 + 1.5

becomes

0.3

Answer 12

So

.12x-1.2-.05x+1.5=-1.80

turns into

0.07x+.30=-1.80

Answer 13

do u subtract the 0.07 from both sides

Answer 14

more like subtract 0.30 from both sides

Answer 15

but you have the right idea

Answer 16

subtract it from the 1.80
or 0.07

Answer 17

from -1.80

Answer 18

which gives me 2.10.

Answer 19

0.07x=2.10

Answer 20

it should be negative

Answer 21

-1.8 - 0.3 = -2.1

Answer 22

so it should be

0.07x = -2.1

Answer 23

then do i subtract the 0.07--2.1

Answer 24

no, you divide both sides by 0.07

Answer 25

which gives me -28.57

Answer 26

hmm not sure how you got that

Answer 27

-2.1/0.07 = -30

So x = -30 is the answer

Answer 28

oh i catched the error

Answer 29

that's good