Question

1)250-115=3у2)х+3х+2×3х=120;3)(48-х)÷8=4;​

Answer 1

Пошаговое объяснение:

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Answer 2

Ответ:

1)3y=135

y=135:3

y=45

2) x+3x+6x=120

10x=120

x=120:10

x=12

3)(48-x)=4*8

(48-x)=32

x=48-32

x=16

Answer 3

Let's solve each of these equations step by step:

1. 250 - 115 = 3y

To solve for y, first, subtract 115 from 250:

250 - 115 = 135

So, the equation becomes:

135 = 3y

Now, divide both sides by 3 to isolate y:

135 / 3 = 3y / 3

45 = y

So, the solution for y is y = 45.

2. x + 3x + 2 * 3x = 120

First, simplify the left side of the equation:

x + 3x + 6x = 120

Now, combine like terms:

10x = 120

To isolate x, divide both sides by 10:

10x / 10 = 120 / 10

x = 12

So, the solution for x is x = 12.

3. (48 - x) ÷ 8 = 4

First, multiply both sides of the equation by 8 to get rid of the fraction:

8 * ((48 - x) ÷ 8) = 8 * 4

48 - x = 32

Now, isolate x by subtracting 48 from both sides:

48 - x - 48 = 32 - 48

-x = -16

To solve for x, multiply both sides by -1 to make x positive:

-x * (-1) = -16 * (-1)

x = 16

So, the solution for x is x = 16.