How do you find "a" in -10+a=6a-7a please help I do not know how to find what the answer is.

Answers

Answer 1

Answer: -10 + a = 6a - 7a

Rearrange the left hand side

a - 10 = 6a - 7a

Simplify 6a - 7a

a - 10 = -a

Add a on both sides

2a - 10 = 0

Add 10 on both sides

2a = 10

Divide by 2 on both sides

a = 5

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Maritzas car has 16 gallons of gas in the tank.She uses 3/4 of the gas.How many agllons of gas does Maritza use?

Answers

Answer:

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2. Simplify -6x - (-9x+4)

Answers

Answer:

3x-4

Step-by-step explanation:

Inside of the parenthesis, it cannot be further simplified, so we moe to distributing.

=-6x+9x-4

Combine like terms

=3x-4

cannot be further simplified on its own

Answer:

$\huge\boxed{-6x-(-9x+4)=3x-4}$

Step-by-step explanation:

$-6x-(-9x+4)=-6x-1(-9x+4)\n\n\text{Use the distributive property}\ a(b+c)=ab+ac\n\n=-6x+(-1)(-9x)+(-1)(4)\n\n=-6x+9x-4\qquad\text{combine like terms}\n\n=(-6x+9x)-4=3x-4$