Question

А)9-4х=3х-40 б)4-6×(х+2)=3-5х​

Answer 1

Ответ:

Пошаговое объяснение:

а) 9-4х=3х-40

-4х-3х=-40-9

-7х=-49

х=49:7

х=7

б) 4-6×(х+2)=3-5х​

4-6х-12=3-5х

4-12-6х=3-5х

-8-6х=3-5х

-6х+5х=3+8

-х=11

х=-11

Answer 2

Let's solve the equations step by step:

a) 9 - 4x = 3x - 40

First, let's simplify the equation by combining like terms:

9 + 40 = 3x + 4x

49 = 7x

Next, we isolate x by dividing both sides of the equation by 7:

49/7 = x

x = 7

Therefore, the solution to the equation is x = 7.

b) 4 - 6(x + 2) = 3 - 5x

First, let's simplify the equation by applying the distributive property:

4 - 6x - 12 = 3 - 5x

Next, let's combine like terms:

-6x - 8 = 3 - 5x

To isolate the variable x, we can add 6x to both sides and subtract 3 from both sides:

-6x + 6x - 8 - 3 = 3 - 5x + 6x

-8 - 3 = x

-11 = x

Therefore, the solution to the equation is x = -11.

To summarize: a) x = 7 b) x = -11