-3(2r+7)=3
distribute -3
-6r-21=3
add 21 to both sides, this causes the 21 on the left to cancel itself out.
-6r=24
divide each side by -6, this causes the -6 on the left side to cancel itself out.
r=-4

3 0

3 years ago

Read 2 more answers

Do you guys know the answer?

Georgia [21]

147

Step-by-step explanation:

180-33=147

7 0

2 years ago

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Susan has completed 30 math problems, which is 3/5 of her homework assignment. How many problems were assigned for homework?

taurus [48]

50 problems were assigned <span />

6 0

3 years ago

The formula for the area,A, of a trapezoid is shown below, where ݄H represents its height and b1 and b2

emmainna [20.7K]

One equivalent is $A=h( \frac{ b_{1}+b_{2} }{2})$

Another example is $A= \frac{(b_{1}+b_{2})(h)}{2}$

4 0

3 years ago