Datrys 65*0.9-50+50x=65*0.9*1.05-50*(1-2x)

$$65 \times 0.9-50+50x=65 \times 0.9 \times 1.05-50 \times (1-2x)$$

Datrys ar gyfer x

$$x=-0.0585$$

Camau ar gyfer Datrys Hafaliad Llinol

Lluosi 65 a 0.9 i gael 58.5.

$$58.5-50+50x=65\times 0.9\times 1.05-50\left(1-2x\right)$$

Tynnu 50 o 58.5 i gael 8.5.

$$8.5+50x=65\times 0.9\times 1.05-50\left(1-2x\right)$$

Lluosi 65 a 0.9 i gael 58.5.

$$8.5+50x=58.5\times 1.05-50\left(1-2x\right)$$

Lluosi 58.5 a 1.05 i gael 61.425.

$$8.5+50x=61.425-50\left(1-2x\right)$$

Defnyddio’r briodwedd ddosbarthu i luosi -50 â 1-2x.

$$8.5+50x=61.425-50+100x$$

Tynnu 50 o 61.425 i gael 11.425.

$$8.5+50x=11.425+100x$$

Tynnu 100x o'r ddwy ochr.

$$8.5+50x-100x=11.425$$

Cyfuno 50x a -100x i gael -50x.

$$8.5-50x=11.425$$

Tynnu 8.5 o'r ddwy ochr.

$$-50x=11.425-8.5$$

Tynnu 8.5 o 11.425 i gael 2.925.

$$-50x=2.925$$

Rhannu’r ddwy ochr â -50.

$$x=\frac{2.925}{-50}$$

Ehangu \frac{2.925}{-50} drwy luosi'r rhifiadur a'r enwadur gyda 1000.

$$x=\frac{2925}{-50000}$$

Lleihau'r ffracsiwn \frac{2925}{-50000} i'r graddau lleiaf posib drwy dynnu a chanslo allan 25.

$$x=-\frac{117}{2000}$$