Answer:
I think that it equals 1ab. Because 3ab - 9ab= -6ab + 7ab= 1ab
So, this question tests wether or not you know how to combing "like terms".
Like terms are terms (thing inbetween +or-) that have the same variables.
Since all three terms contain "ab" we can add and subtract them.
So, 3ab-9ab = -6ab
-6ab+7ab=1ab
1ab is the correct answers
turn the percentage into a decmial and then multiply the money
x≥9
Step-by-step explanation:
Pretend the Less than or equal to sign is just an equals sign
-7x+7=-56 Solve:
-7x=-56-7
-7x=-63
For the last step, if you divide a negative number, the Sign switches. So not the sign is greater than or equal to.
x>=9
