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Question 1:
Solve the equation for x : 19(x + y) + 17 = 19(-x + y) - 21?
A. -1
Feedback 19x + 19y + 17 = -19x + 19y - 21
38x = -38 => x = -1.
B. -2
C. -3
D. -4

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Simple Equations Online Test 1 | Englishfreetest.com