12x+6=9x-15 (subtract variables, smaller one)
-9x. -9x
3x+6=-15 (subtract 6 to both sides)
-6. -6
3x=-21 (divide 3)
x=-9
the answer was 5mx^2-8ax+x^2+3a
let's show your
(5m+1)x^2-8ax+3a
distribute
(5m)(x^2)+(1)(x^2)-8ax+3a
5mx^2+x^2-8ax+3a
answer was 5mx^2-8ax+x^2+3a
hope this helps
D = 6/42121 or d = 0.000142447
Answer:
x=-4 and y=6
Step-by-step explanation: