The discriminant of this solution is 76.
Answer:
8.2
Step-by-step explanation:
Answer:
10x -4
Step-by-step explanation:
3+2(5x)-7
Multiply
3 +10x -7
Combine like terms
10x -4
Answer:
-57.5
Step-by-step explanation:
No that wouldn't be the solution because:
18x=10y=19
18*1+10*2=
18+20=38
Which isn't 19 so it cant be the answer.
And:
x+15y=18
1+15*2=
1+30=31
Which is also wrong because it doesn't = 18
