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4x + 4 + 5x - 22 = 90
combined like terms
9x - 18 = 90
+18 +18
9x = 108
/9 /9 divide by 9 on both sides
x = 12
plug in and check
(4 * 12) + 4 + (5 * 12) - 22 = 90
48 + 4 + 60 -22 = 90
90 = 90
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∙ 14y ago
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