Question

110 +0.70x = 50+ 0.90x​

Answer 1

`\boxed{ \bold{ \huge{ \boxed{ \sf{x = 300}}}}}`

Explanation:

`\sf{110 + 0.70x = 50 + 0.90x}`

Move 0.90x to left hand side and change it's sign

⇒
`\sf{0.70x - 0.90x + 110 = 50}`

Move 110 to right hand side and change it's sign

⇒
`\sf{0.70x - 0.90x = 50 - 110}`

Collect like terms

⇒
`\sf{ - 0.2x = 50 - 110}`

Calculate

⇒
`\sf{ - 0.2x = - 60}`

Divide both sides of the equation by -0.2

⇒
`\sf{ ( - 0.2x)/( - 0.2) = ( - 60)/( - 0.2) }`

Calculate

⇒
`\sf{x = 300}`

Hope I helped!

Best regards!!