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yulyashka [42]
2 years ago
15

Can you please HELP ME!! I have done question a but i need help on question b. For some people it may be easy but...

Mathematics
2 answers:
Nataliya [291]2 years ago
6 0

Step-by-step explanation:

a) 8x + 5x = 13x

b) 9f + 10f - 12f = 7f

hope it helps...

pickupchik [31]2 years ago
5 0

Answer:

1) 13x

2) 7f

Step-by-step explanation:

1)8x +  5x \\ combine \: like  \: terms \\  = 13x \\  \\ 2)9f + 10f - 12f \\ add \: 9f \: and \: 10f \: together = 19f \\ substract \: 19f \: from \: 12f \\  = 7f

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How to solve this equation 5x-4-7x=4
elixir [45]

Answer:

x= -4

Step-by-step explanation:

Simplifying

5x + -4 = 7x + 4

Solving

-4 + 5x = 4 + 7x

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

Add '-7x' to each side of the equation.

-4 + 5x + -7x = 4 + 7x + -7x

Combine like terms: 5x + -7x = -2x

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Combine like terms: 7x + -7x = 0

-4 + -2x = 4 + 0

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Add '4' to each side of the equation.

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Combine like terms: 4 + 4 = 8

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Divide each side by '-2'.

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3 0
2 years ago
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egoroff_w [7]

Answer:

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3 years ago
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