Step-by-step explanation:
x^2+x-6006=0
x^2+78x-77x-6006=0
x(x+78)-77(x+78)=0
(x-77)(x+78)=0
=>x=77 or x=78
Step-by-step explanation:
3y+5<10
3y<10-5
3y<5
y<⅗
Well in the first equation m= -17
So you just have to substitute -17 in and see if it makes sense
like with the first equation -17 + 25 does equal 8 therefore x (in the second equation) = m (in the first)
Answer:
30+(2x+7)+63=180(sum of angles of triangle )
30+2x+7+63=180
2x+100=180
2x=180-100
x=80/2
x=40
