Determine all three angle measurements in Triangle XYZ that has angles that measure (2x - 15), (x - 5)º and 42º.

the sum of triangle is 180°

(2x-15)+(x-5)+42°=180°

2x+x-15°-5°+42°=180°

3x+22°=180°

3x=180°-22

3x=158°

x=52.67°

x > 1.3

step by step:

8.5−0.9x> 9.8−1.9x

step 1: simplify both sides of the inequality.

−0.9x+8.5> −1.9x+9.8

step 2: add 1.9x to both sides.

−0.9x+8.5+1.9x> −1.9x+9.8+1.9x

1x+8.5> 9.8

step 3: subtract 8.5 from both sides.

1x+8.5−8.5> 9.8−8.5

1x> 1.3

step 4: divide both sides by 1.

1x/1 > 1.3/1

the two may have that, even a breakdown is probably offered