Question

power and exponent . Simplify 3x+7y-2x+9y. write in steps​

Answer 1

Answer:

the answer is -1

Step-by-step explanation:

3×+7y-2×+9y = 0

3×+7•y-2×+9•y = 0

16y = -1

y = -1/

16

= -0.0625