5x-2y=3
-5x+4y=9
2y= 12
divide it by 2
y= 6
put y in any equation
5x-2 (6)=3
5x-12=3
5x= 3+12=15
divide by 5
x=3
y= 6
You need to remember your exponent rules. I don’t know any easier way to do it. These are all the ones I can remember right now
Answer: (-2, 5/3)
explanation: since you are given x = -2, just plug that into the equation and solve.
Answer:
-2.1
Step-by-step explanation:
-7.3 - 11.2 - 1.7 + 0 + 0 +2.2 + 3.3
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7
= -2.1