Datrys {l}{{(2*37+x)}-7*3=2}{y=77}{z=y}{a=z}{b=a}{c=b}{text{Solvefor}dtext{where}}{d=c}

$$\left. \begin{array} { l } { {(2 \cdot 37 + x)} - 7 \cdot 3 = 2 }\\ { y = 77 }\\ { z = y }\\ { a = z }\\ { b = a }\\ { c = b }\\ { \text{Solve for } d \text{ where} } \\ { d = c } \end{array} \right.$$

Datrys ar gyfer x, y, z, a, b, c, d

$$d=77$$

Camau Ateb

Ystyriwch yr hafaliad cyntaf. Lluosi 2 a 37 i gael 74.

$$74+x-7\times 3=2$$

Lluosi 7 a 3 i gael 21.

$$74+x-21=2$$

Tynnu 21 o 74 i gael 53.

$$53+x=2$$

Tynnu 53 o'r ddwy ochr.

$$x=2-53$$

Tynnu 53 o 2 i gael -51.

$$x=-51$$

Mae’r system wedi’i datrys nawr.

$$x=-51 y=77 z=77 a=77 b=77 c=77 d=77$$