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Step-by-step explanation:
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we know that
Therefore , for
Answer:
x=4 y=7
When multiplying 3x by -2, you get -6x. -6x and 6x cross out. You're left with -2y=-2 and -2y=10.
u = 1.5
5+4u=11
-5 -5
4u = 6
/4 /4
u=1.5