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hoa [83]
3 years ago
11

7b + (5b-7) please solve this

Mathematics
2 answers:
Andreas93 [3]3 years ago
8 0
I believe you do it this way.
7b x 5b + 7b x -7
35b - 14b
11b is the answer
zhuklara [117]3 years ago
8 0

Answer:

12b - 7

Step-by-step explanation:

7b + ( 5b - 7 )

Remove bracket

7b + 5b -7

Add 5 and 7 and write b next to the sum

12b

Then place -7 next to the value found in 2nd step

12b-7

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Please answer the attached question by selecting of the the given answers.
Alchen [17]

Answer:

The correct answer is option A. Base = 11 cm and height = 13 cm

Step-by-step explanation:

It is given that, height of a triangle is 2 cm more than its base.Then height is increased by 2 cm.Then the area of triangle becomes 82.5 cm²

<u>To find the base an d height of original triangle</u>

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5 0
3 years ago
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irina [24]
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5 0
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