exam Maths Puzzle Numerical Ability

0.3 (4 + 2X)
- 0.1 (X +2)
= 0

Please tell me what X is/ The value of X.

Thanks.

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exam Other Question

Hi. May I have some help with the following equation?

Find all real solutions of the following equation. (If there are extra answer boxes, enter NONE.)

(x/(x+7))^2 = (4 x)/(x+7) - 4 I need some help. Can anyone tell me what the solution is to this problem using substitution?
y=-2/3x+4
2x+3y=-6