Question

0.4z -3 7=1.5z +9 5​

Answer 1

Полное условии в приложении.

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$2z-15=10,5z+63$

$2z-10,5z=63+15$

$-8,5z=78$

$z=78:(-8,5)$

$z=78:(-8\tt\displaystyle\frac{1}{2})$

$z=78:(-\tt\displaystyle\frac{17}{2})$

$z=78*(-\tt\displaystyle\frac{2}{17})$

$z=-9\tt\displaystyle\frac{3}{17}$

Answer 2

To solve the equation, let's first simplify the equation by combining like terms:

0.4z - 37 = 1.5z + 95

Next, let's isolate the variable terms (terms with 'z') on one side and the constant terms on the other side. We can do this by adding 37 and subtracting 1.5z from both sides of the equation:

0.4z - 1.5z = 95 + 37

(-1.5z + 0.4z) = 132

Now, combine the variable terms and simplify:

-1.1z = 132

To solve for z, divide both sides of the equation by -1.1:

z = 132 / -1.1

z ≈ -120

Therefore, the solution to the equation is z ≈ -120.