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First, in the rule, 8x+15=3x-20, you have to get the x's on the left side by subtracting 3x, on both sides. then it would be, 5x+15=-20.
so you have to get the numbers on the other side, so you will have to subtract 15 to both sides, so you get 5x=-35, then you divide both sides by 5.
So, it's x=-7.
So, the answer is -7.
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Continue Learning about Math & Arithmetic
Solve 8x plus 39 equals 2x-15?
8x+39 = 2x-15 6x = -54 x = -9
What is x when 2x plus 15 equals 43 plus 8x?
2x + 15 = 8x + 43 -6x = 28 x = -6 / 28 = -3 / 14
How do you write 8x plus 4y equals 5?
8x plus 4y equals 5 is 8x + 4y = 5.
What is the solution set of -8x plus x plus 15 equals -7x plus 12?
the empty set.
Y equals 8x times x plus 15 maximum and minimum?
There is no maximum but te minimum is 15.
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