-0.9*(1.2-х)=1.8*(х+2.4)

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вопрос

-0.9(1.2-x) = 1.8(x+2.4)

Expanding on both sides:

-1.08 + 0.9x = 1.8x + 4.32

Group like terms:

0.9x - 1.8x = 4.32 + 1.08

-0.9x = 5.4

Divide by -0.9 on both sides:

x = -6

Therefore, the value of x is -6.