Question

7x-12 degree and 3x-28 are two angles whose sum is 90. find the two angles​

Answer 1

Answer:

79 and 11

Step-by-step explanation:

7x-12+3x-28=90

10x-40=90

10x=130

x=13

7x-12=7*13-12=91-12=79

3x-28= 3*13-28=39-28=11

Answer 2

Step-by-step explanation:

7x-12+3x-28=90

10x+40=90

10x=90-40

10x=50

x=50/10

x=5