1) X+x+x=30 2) x*43=43:x 3) x-18=16-16 4) x+20=12+8 найти значение х в уравнениях

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вопрос

1) X+x+x = 30
Simplify this by adding the x terms: 3x = 30
Divide by 3 to isolate x: x = 10

2) x*43 = 43/x
Divide both sides by 43 to isolate x: x = 1

3) x - 18 = 16 - 16
Simplify: x - 18 = 0
Add 18 to both sides: x = 18

4) x + 20 = 12 + 8
Simplify: x + 20 = 20
Subtract 20 from both sides: x = 0

Therefore, the values of x in the equations are:
1) x = 10
2) x = 1
3) x = 18
4) x = 0