Datrys 8x-7.2(1+0.5)=7x-7(1+0.5)x+700

$$8x-7.2(1+0.5)=7x-7(1+0.5)x+700$$

Datrys ar gyfer x

$$x = \frac{7108}{115} = 61\frac{93}{115} \approx 61.808695652$$

Camau ar gyfer Datrys Hafaliad Llinol

Adio 1 a 0.5 i gael 1.5.

$$8x-7.2\times 1.5=7x-7\left(1+0.5\right)x+700$$

Lluosi 7.2 a 1.5 i gael 10.8.

$$8x-10.8=7x-7\left(1+0.5\right)x+700$$

Adio 1 a 0.5 i gael 1.5.

$$8x-10.8=7x-7\times 1.5x+700$$

Lluosi 7 a 1.5 i gael 10.5.

$$8x-10.8=7x-10.5x+700$$

Cyfuno 7x a -10.5x i gael -3.5x.

$$8x-10.8=-3.5x+700$$

Ychwanegu 3.5x at y ddwy ochr.

$$8x-10.8+3.5x=700$$

Cyfuno 8x a 3.5x i gael 11.5x.

$$11.5x-10.8=700$$

Ychwanegu 10.8 at y ddwy ochr.

$$11.5x=700+10.8$$

Adio 700 a 10.8 i gael 710.8.

$$11.5x=710.8$$

Rhannu’r ddwy ochr â 11.5.

$$x=\frac{710.8}{11.5}$$

Ehangu \frac{710.8}{11.5} drwy luosi'r rhifiadur a'r enwadur gyda 10.

$$x=\frac{7108}{115}$$