Step-by-step explanation:
jsjsjsjshjososnsnxjxjxjxjxjdjdj
Answer:
2. 
3. 
Step-by-step explanation:
We add like terms together to simplify
2. 3x²-4x²= -x² -2x+5x= 3x 6+9= 15 all equal to -x²+3x+15
3. 2x²-3x²= -x² 6x-7x= -x 8+1=9 all equal to -x²-x+9
Answer:
x=1.5
Step-by-step explanation:
Line up the decimal point to each number in order from left to right and subtract to get the difference which should be -0.248