2numbers have a difference of 0.7 and a sum of 1. what are the numbers

Can someone me and do the problem plz so i can understand it more better

When using the linear combination metho e linear combination method to solve a system of linear equations, the four options are:

Iwill arward ! , i if bt ≅ eu , bu ≅ et , prove: ∠b ≅ ∠e. fill in the blanks: draw segment ut ≅ bt≅ bu ≅ △ubt ≅ △