Question

How do you solve 4n−40=7(−2n+2)?

Answer 1

...............Hey mate............

Your Answer

$let \: take \: n \: = x \\ \\ = \geqslant 4x - 40 = 7( - 2x + 2) \\ \\ = \geqslant 4x - 40 = - 14x + 14 \\ \\ = \geqslant 4x + 14x = 14 + 40 \\ \\ = \geqslant 18x = 54 \\ \\ = \geqslant x = \frac{54}{18} \\ \\ = \geqslant x = 3 \: answer \: \\ \\ \\ \\ = \geqslant and \: we \: had \: taken \: x \: as \: n \: \\ \\ so \: n \: = 3$