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Solve the following

1) 2(x + 3) = x - 4
2) 4(5x-2) = 2(9x+3)

PLS HELP ​

User Solnic
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1 Answer

3 votes

Answer:

(1)
x = -4 (2)
x = 7

Explanation:

From the first equation:


2(x + 3) = x - 4\\\implies x = 2(x + 3) + 4\\\implies x = 2x + 6 + 4\\\implies x = 2x + 4\\\implies -4 = 2x - x\\\implies x = -4

From the second equation,


4(5x - 2) = 2(9x + 3)\\\implies 20x - 8 = 18x +6\\\implies 20x - 18x - 8 -6 = 0\\\implies 2x -14 = 0\\\implies 2x = 14\\\implies x = (14)/(2) = 7

User Csgero
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