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2x + 2 = 5x + 8
2x - 5x = 8 - 2
-3x = 6
x =
x = -2
lalu kita cocokan dengan x < -2
2 (-3) + 2 = 5(-3) + 8
-6 + 2 = -15 +8
-4 = -7 berarti tanda = diganti dengan > --> tidak memenuhi persyaratan
x > -2
2(-1) + 2 = 5 (-1) + 8
-1 = 3 berarti tanda = diganti dengan < memnuhi persyaratan
jadi 2x+2 = 5x+8 jawabannya x < -2