Answer:

Step-by-step explanation:
All work is shown above.
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92% You would divide 69 by 75 then multiply by 100
Answer:
undefined/no solution
Step-by-step explanation:
you use elimination to solve. So multiply 2x+4y=-12 by 1 and x+2y=-2 by 2. then you subtract 2x+4y=-12 by 2x+4y=-4 and get 0y=-8. Anything divided by 0 is undefined/no solution because you can't divide anything by 0.
Answer:

Step-by-step explanation:
You want x alone on the left side.
x is being multiplied by 3 and by c.
The opposite operation of multiplication is division. You must divide 3xc by 3c to end up with just x.
You must do the same operation to both sides of an equation, so divide both sides by 3c.

Divide both sides by 3c.

Simplify both sides.

Answer:
5x - 18
Step-by-step explanation:
-3(x + 6) + 8x
Multiply
(-3 * x) + (-3 * 6) + 8x
-3x + (-18) + 8x
5x - 18
Hope this helps :)