Answer:
-6x+12
-9+5a
7x+63
8y-4/5x-12
Step-by-step explanation:
To solve these all you have to do is take the number outside of the parenthesis and multiply them by each term.
-3(2x)-3(-4) All I did here was expand the problem to show what i mean by terms.
Do this for each problem.
0.1(-90)+0.1(50a)
-7(-x)-7(-9) For this one you are taking negatives times negatives so each answer will be positive.
4/5(10y)+4/5(-x)+4/5(-15)
2x+x+3(2x)=63
3x+6x=63
9x=63
9x/9=63/9
X=7
2x=14
3(2x)=42
6 cm from what im seeing
