Answer:
= -180
Step-by-step explanation:
observe that
15j + 12k = 18
3(5j + 4k = 6)
since the first equation is multiple of the second equation, then there are infinitely many solutions for the system
Step-by-step explanation:
This equations are quadratic equations, which is on standard form,
where a is the leading coefficient, b is the second coefficient, and c is the constant.
Both a and b are in quadratic equation so we need to find the constant separately.
Both sides are equal to zero so we can just subtract the terms not containing a or b in them to the opposite side.
For b,
First you need to distribute that invisible -1 to (9-0). You do this because of PEMDAS. -9+0 will be your outcome first. You can disregard the zero and now multiply 10 * -9 * 5 as these have no x variable. Multiplying all of those you get -450 * 3x. Thats the simplified form of this problem. -1350x if you're teachers looking for that.