If: 10x+7 = 5x+22
Then: 10x-5x = 22-7
And: 5x = 15
So: x = 3
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5x + 4 = 10x - 5 10x - 5x = 4 + 5 5x = 9 x = 1.8
10x+7 = 5x+32 10x-5x = 32-7 5x = 25 x = 5
30 + 5x = 15 + 10x 30 = 15 + 5x 15 = 5x x = 3
10x - 18 = 5x + 2 Add -5x + 18 to both sides of the equation, to get: 5x = 20, from which x = 4.
6-3x = 5x-10x+2 4 = 8x-10x 4 = -2x x = -2