Help please Enter your answer in scientific notation.
1. 3.6 × 10^3 + 7.3 × 10^4 =
2. 8 × 105 − 5.7 × 105 =

The value of x in this system of equations is 1. 3x + y = 9 y = –4x + 10 substitute the value of y in the first equation: combine like terms: apply the subtraction property of equality: apply the division property of equality: 3x + (–4x + 10) = 9 –x + 10 = 9 –x = –1 x = 1 what is the value of y?