What is m(angle)GHI?

GFI = GI arc ==》 GI arc = x + 42

GHI = GI arc ÷ 2

==》 x - 9 = ( x + 42 ) ÷ 2

Multiply both sides by 2

==》2 × ( x - 9 ) = 2 × ( x + 42 / 2)

==》 2x - 18 = x + 42

Add both sides 18

==》 2x - 18 + 18 = x + 42 + 18

==》 2x = x + 60

Subtract both sides x

==》 2x - x = x - x + 60

==》 x = 60

GHI = x - 9

GHI = 60 - 9

GHI = 51

let's solve your equation step-by-step.

4x+2=2x+12

step 1: subtract 2x from both sides.

4x+2−2x=2x+12−2x

2x+2=12

step 2: subtract 2 from both sides.

2x+2−2=12−2

2x=10

step 3: divide both sides by 2.

2x

2

=

10

2

x=5

step-by-step explanation:

step-by-step explanation: