A system of equations is shown.

0.6d+0.05e=-4.5

-0.12d+0.3e=2.76

d=

e=

I would multiply to get rid of the decimals and work with whole numbers.

Since we have numbers that are "hundredths", we would need to multiply every number by 100.

60d + 5e = - 450

-12d + 30e = 276 Now that the decimals are gone, if we multiply the second equation by 5 the "d's" will cancel.

60d + 5e = - 450

-60d + 150e = 1380

155e = 930

e = 6

Now plug 6 back in for e and solve for d.

60d + 5 (6) = - 450

60d + 30 = - 450

60d = - 480

d = - 8

(-8, 6)

If you'd rather work it with decimals just let me know.