Question

30-(-y+4.5)=-1.5-152+(-82+a)=-370+70

Answer 1

Первое:

Раскрыть скобки и вычесть числа и получается: 25,5 + у = -2.5

Потом решаем обычное уравнение.

у=-2,5-25,5

у=-28

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Второе:

Раскрыть скобки и вычислить и получается: -30+а=-300

а=-300+30

а= -270

Answer 2

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Answer 3

Let's break down the given equation step by step:

Step 1: 30 - (-y + 4.5) To simplify the expression inside the parentheses, we distribute the negative sign: 30 + y - 4.5

Step 2: -1.5 - 152 + (-82 + a) To simplify the expression inside the parentheses, we combine like terms: -1.5 - 152 + (-82 + a) = -153.5 + (-82 + a)

Next, we distribute the negative sign to the expression (-82 + a): -153.5 - 82 + a

Step 3: -370 + 70 Simply adding -370 and 70: -370 + 70 = -300

Now, we can rewrite the equation with the simplified expressions:

30 + y - 4.5 = -153.5 - 82 + a = -300

To further simplify the equation, we can combine like terms:

30 - 4.5 + y = -235.5 + a = -300

Finally, we can rearrange the equation to isolate the variable 'y':

y = -300 - 30 + 4.5 = -325.5

Therefore, the solution to the equation is y = -325.5.