Datrys x-0.02*1.21x-left(x-235000right)*0.2=257000

$$x-0.02 \cdot 1.21x- \left( x-235000 \right) \times 0.2 = 257000$$

Datrys ar gyfer x

$$x = \frac{350000000}{1293} = 270688\frac{416}{1293} \approx 270688.321732405$$

Camau ar gyfer Datrys Hafaliad Llinol

Lluosi 0.02 a 1.21 i gael 0.0242.

$$x-0.0242x-\left(x-235000\right)\times 0.2=257000$$

Cyfuno x a -0.0242x i gael 0.9758x.

$$0.9758x-\left(x-235000\right)\times 0.2=257000$$

Defnyddio’r briodwedd ddosbarthu i luosi x-235000 â 0.2.

$$0.9758x-\left(0.2x-47000\right)=257000$$

I ddod o hyd i wrthwyneb 0.2x-47000, dewch o hyd i wrthwyneb pob term.

$$0.9758x-0.2x-\left(-47000\right)=257000$$

Gwrthwyneb -47000 yw 47000.

$$0.9758x-0.2x+47000=257000$$

Cyfuno 0.9758x a -0.2x i gael 0.7758x.

$$0.7758x+47000=257000$$

Tynnu 47000 o'r ddwy ochr.

$$0.7758x=257000-47000$$

Tynnu 47000 o 257000 i gael 210000.

$$0.7758x=210000$$

Rhannu’r ddwy ochr â 0.7758.

$$x=\frac{210000}{0.7758}$$

Ehangu \frac{210000}{0.7758} drwy luosi'r rhifiadur a'r enwadur gyda 10000.

$$x=\frac{2100000000}{7758}$$

Lleihau'r ffracsiwn \frac{2100000000}{7758} i'r graddau lleiaf posib drwy dynnu a chanslo allan 6.

$$x=\frac{350000000}{1293}$$