Solve for x.

x=.

1. whats 2/3 plus 1/9 2. 5/7 plus 1/2 3.7/15 plus 2/15

What numbers are included in the set of integers? what numbers are not included?

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?