Is there an operator missing from this question?
* 3 + 4x = 19 => x = 4 * 3 - 4x = 19 => x = -4 * 3 . 4x = 19 => x = 19/12
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x= -.5
3
here is the mathematical expression, you need an equals sign and something it equals to actually solve for x but I hope this is what you needed or repost with what it equals 4x+4
y = 4x-3
x2-10 = 4x+11 x2-4x-10-11 = 0 x2-4x-21 = 0 (x+3)(x-7) = 0 x = -3 and x = 7