2X + (5-x) X4 = 14 2x + 20-4x = 14 why is 4x minus 2x? 4x is preceded by a minus sign, 4x-2x = 20-14 2x = 6 x = 3 2x+(5—x)x4=14 2X + 20-4x = 14? Why is 4x minus 2x? Why is 4x minus 2x 4x—2x=20—14 2x=6 x=3 I don't understand the question mark part Thank you

It's phase shifted

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