5x+1=20
5x=20-1
5x=19
5x/5=19/5
x=19/5
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5x + 2 = 22 5x = 22 - 2 5x = 20 5x/5 = 20/5 x=4
If as a straight line equation: 5x+2y = 20 then y = -2.5x+10 whereas -2.5 is the slope and 10 is the y intercept
23
7
x = -1.2, y = -3