1. 6x + 3 = 4x + 11
3. 3x + 2(x + 3) = 21
7. 0.6x + 0.25x = 0.45x +
9. 7x+4
x+2
4
3
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6x+3=4x+11
6x+4x=11-3
10x=8
x=10
8
x=5
4
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