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Bond [772]
3 years ago
5

Help me understand this pls

Mathematics
1 answer:
wolverine [178]3 years ago
6 0

Step-by-step explanation:

14)

Simplifying

3m + 5 = 4m -10

Reorder the terms:

5 + 3m = 4m -10

Reorder the terms:

5 + 3m = -10 + 4m

Solving

5 + 3m = -10 + 4m

Solving for variable 'm'.

Move all terms containing m to the left, all other terms to the right.

Add '-4m' to each side of the equation.

5 + 3m + -4m = -10 + 4m + -4m

Combine like terms: 3m + -4m = -1m

5 + -1m = -10 + 4m + -4m

Combine like terms: 4m + -4m = 0

5 + -1m = -10 + 0

5 + -1m = -10

Add '-5' to each side of the equation.

5 + -5 + -1m = -10 + -5

Combine like terms: 5 + -5 = 0

0 + -1m = -10 + -5

-1m = -10 + -5

Combine like terms: -10 + -5 = -15

-1m = -15

Divide each side by '-1'.

m = 15

Simplifying

m = 15

(thank to <em>geteasysolution</em> . com

15)

xy+yz=xz

a+a+8=50

2a=42

a=21

a+8=29

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<em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em>=</em><em>2</em><em>2</em><em>/</em><em>7</em><em>×</em><em>1</em><em>9</em><em>6</em>

<em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em>=</em><em>6</em><em>1</em><em>6</em><em>m</em>

3 0
2 years ago
Explanation how solve step by step 2/7m-1/7=3/14
Drupady [299]

Answer:

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Step-by-step explanation:

It's best to enclose fractional coefficients inside parentheses to eliminate ambiquity:   2/7m-1/7=3/14 => (2/7(m - (1/7) = (3/14).

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4(7m - 1) = 21, or

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Hence, m = 25/28.

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