Problem: x+5x+4
Answer:6x+4
Explanation: You have 5 x's...you add the other x to the 5 x's and that makes 6 x's...then the +4 stays the same because you have nothing to combine it with. So therefore, your answer would be 6x+4.
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x+4x=5
if x=1 then substitute the value of x to the given equation....
1+4(1)=5
5=5
x= -.5
If your expression is 5x + 4 = ? and x = 3, then the answer is 19. If the expression is 5(x + 4) = ? and x = 3, then the answer is 35.
(5x + 10)(x + 3) or 5. (x + 2)(x + 3) Check with x = (say) 3 so 5 x 5 x 6 = 150; 45 + 75 + 30 = 150 OK
20c x 7, plus 10c x 1 20c x 6, plus 10c x 3 20c x 5, plus 10c x 5 20c x 4, plus 10c x 7 20c x 3, plus 10c x 9 20c x 2, plus 10c x 11 20c x 1, plus 10c x 13
x² + 8x + 15 = (x + 5)(x + 3)