Question

3(4.5-2x-1.8(x+5)=5(1.5-1.4x)​

Answer 1

Step-by-step explanation:

3(4.5-2x)-1.8(x+5)=5(1.5-1.4x)

We move all terms to the left:

3(4.5-2x)-1.8(x+5)-(5(1.5-1.4x))=0

We add all the numbers together, and all the variables

3(-2x+4.5)-1.8(x+5)-(5(-1.4x+1.5))=0

We multiply parentheses

-6x-1.8x-(5(-1.4x+1.5))+13.5-9=0

We calculate terms in parentheses: -(5(-1.4x+1.5)), so:

5(-1.4x+1.5)

We multiply parentheses

-5x+7.5

Back to the equation:

-(-5x+7.5)

We add all the numbers together, and all the variables

-7.8x-(-5x+7.5)+4.5=0

We get rid of parentheses

-7.8x+5x-7.5+4.5=0

We add all the numbers together, and all the variables

-2.8x-3=0

We move all terms containing x to the left, all other terms to the right

-2.8x=3

x=3/-2.8

x=-1+0.2/2.8

hope it will help