3x -1 = 11
3x = 11 + 1
3x = 12
x = 4
I take it by, x2 + x, you mean 2x + x, since x = 4, then
2x + x = 2(4) + (4) = 8 + 4 =12
Answer:
Step-by-step explanation:12x=5x+14, 7x=14,
x=2
This is hard help get it from google or something
Answer:
Step-by-step explanation:
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