Question

-4(2,5а - 1,5)+5,5а-8 при = - 2/9

Answer 1

Ответ:

-1

Объяснение:

-4(2.5a-1.5)+5.5a-8=

=-10a+6+5.5a-8=

=-4.5a-2=

=-4.5*(-2/9)-2=

=-45/10*(-2/9)-2=

=-9/2*(-2/9)-2=

=1-2=-1

P.s. надеюсь понятно. Просто сократить, подставить и решить)

Answer 2

To solve the equation:

-4(2.5a - 1.5) + 5.5a - 8 = -2/9

First, we need to simplify the expression by using the distributive property and combining like terms:

-10a + 6 + 5.5a - 8 = -2/9

-4.5a - 2 = -2/9

Next, we can solve for "a" by isolating it on one side of the equation:

-4.5a = -2/9 + 2

-4.5a = -16/9

a = (-16/9) / (-4.5)

a = 32/81

Therefore, the solution to the equation is a = 32/81.