Question

45(2x+5)−4=1 What does X equal? x=1 1/4
x=1 3/5
x=5/8
x=3 1/5

Answer 1

remember, you can do anything to an equaiton as long as you do it to both sides

45(2x+6)-4=1

add 4 to both sides

45(2x+5)=5

divide both sides by 45

2x+5=5/45

2x+5=1/9

minus 5 from both sides

`2x=(1)/(9)-5`

`2x=(1)/(9)-{5*9}{9}`

`2x=(1)/(9)-{45}{9}`

`2x=(46)/(9)`

mulitply both sides by 1/2

`x=(46)/(18)`

`x=(23)/(9)`

simplify

`x=(18)/(9)+(5)/(9)`

[tex]x=2+\frac{5}{9}[tex]

the answer is none of the above unless you wrote the equation wrong