Question

System of equation:
2.5x - 3y = -13
3.25x - y = -14

I got to 7.25x = 27; x = 3.7241...
Am I correct?

Answer 1

My full work:
y = mx + c form:
3.25x − y = −14
y = 3.25x + 14
Input y into the first equation:
2.5x − 3y = −13
2.5x − 3(3.25x+14) = −13
2.5x − 9.75x = −13 − 42
−7.25x = −55
7.25x = 27

Answer 2

\[3.25x - y = -14\]
\[y = 3.25x + 14\]
\[2.5x - 3y = -13\]\[2.5x-3(3.25x+14) = -13\]\[2.5x-9.75x-42=-13\]\[-7.25x=-13+42\]
try again from there...

Answer 3

Thanks again :)

Answer 4

what is your final value for x and y?

Answer 5

x = -4
y = 1

Answer 6

Good job!