Question

(7m-2)÷2-0,8(m-3)+6=1,5(m+2)​

Answer 1

Ответ:

3 5/6

Объяснение:

(7m-2)÷2-0,8(m+3)+6=1,5m+2

7м:2-2:2-0,8м-2,4+6=1,5м+2

3,5м-1-0,8м-2,4+6=1,5м+2

3,5м-0,8м-1,5м=2-1-2,4+6

1,2м=4,6

м=4,6:1,2

м=46/10:12/10

м=46*10/10*12

м=46/12

м=3 5/6.

Answer 2

Let's solve the equation step by step:

(7m - 2) ÷ 2 - 0.8(m - 3) + 6 = 1.5(m + 2)

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

(7m - 2) ÷ 2 - 0.8m + 2.4 + 6 = 1.5m + 3

Next, let's continue simplifying by combining like terms:

(7m - 2) ÷ 2 - 0.8m + 8.4 = 1.5m + 3

Now, let's eliminate the fraction by multiplying every term by 2:

2[(7m - 2) ÷ 2 - 0.8m + 8.4] = 2(1.5m + 3)

Expanding the equation:

7m - 2 - 1.6m + 16.8 = 3m + 6

Now, let's combine like terms:

7m - 1.6m - 3m = 6 - 16.8 + 2

2.4m = -8.8

Finally, let's isolate the variable by dividing both sides of the equation by 2.4:

m = -8.8 / 2.4

m ≈ -3.67

So the solution to the equation is approximately m = -3.67.