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Mathematics
Pirate
10 February, 20:30
Solve the following:
1) 3x + 5 = 19 - 4x
2) 4 (x-3) = 2 (x-2)
+2
Answers (
2
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Landin Keith
10 February, 20:49
0
1. 7x + 5 = 19
7x = 14
x = 2
2. 4x - 12 = 2x - 4
2x - 12 = - 4
2x = 8
x = 4
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Elvis Hood
10 February, 22:14
0
x = 2 and x = 4
Step-by-step explanation:
(1)
3x + 5 = 19 - 4x (add 4x to both sides)
7x + 5 = 19 (subtract 5 from both sides)
7x = 14 (divide both sides by 7)
x = 2
(2)
4 (x - 3) = 2 (x - 2) ← distribute parenthesis on both sides
4x - 12 = 2x - 4 (subtract 2x from both sides)
2x - 12 = - 4 (add 12 to both sides)
2x = 8 (divide both sides by 2)
x = 4
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