Practice Skills - Estimating 2019 FS L1 - Esumate Answerg to cal Practice N/L1.15 - Pracuce skills Question ID: 15992 Answer the following Estimate the sum or difference of the following decimal numbers by rounding to the nearest tenth. 2.29 + 9.11 11.4 15.381-5.414 | I 7.63 - 1.11 + 5.99 5.734 + 6.893 18.355 - 4.411 ​

the sum of all the angles in a triangle are equal to 180

so you can add   the 3 given angles together to equal 180:

5y + 2y + 2y = 180

or since all three angles have the same letter, combine the 3 angles to equal 180:

9y = 180

step-by-step explanation:

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: