Answer:
=12x+y
Step-by-step explanation:
Combine like terms
=5x+-3y+7x+4y
=(5x+7x)+(-3y+4y)
=12x+y
Answer:
9 x 8 = 72
This equation shows that 9 is a factor of 72 because 9 times something is 72 in this equation. Hope it helps!
Answer:
70 years
Step-by-step explanation:
35 years before Christ and then another 35 years after: 35 + 35 = 70 years
45% of 76
45%=0.45
0.45*76
34.2
34.2 is about 34
so 34
2+2-1 that's three quick maths.
