Answer:
15x - y = - 6.....15x + 6 = y...so we sub in 15x + 6 in for y on the other equation
5x - 3y = -13
5x - 3(15x + 6) = -13 <== the new equation
Step-by-step explanation:
What how is this a problem and how are you in middle school
Answer:
3600
Step-by-step explanation:
multiply all of the choices
10x15x6x4