Whakaoti i te {l}{{(x+2*7)}/4*9=25}{y=3}{z=y}{a=z}{text{Solvefor}btext{where}}{b=a}

$$\left. \begin{array} { l } { {(x + 2 \cdot 7)} / 4 \cdot 9 = 25 }\\ { y = 3 }\\ { z = y }\\ { a = z }\\ { \text{Solve for } b \text{ where} } \\ { b = a } \end{array} \right.$$

Whakaoti mō x, y, z, a, b

$$b=3$$

Ngā Upane Otinga

Whakaarohia te whārite tuatahi. Whakawehea ngā taha e rua ki te 9.

$$\frac{x+2\times 7}{4}=\frac{25}{9}$$

Me whakarea ngā taha e rua ki te 4.

$$x+2\times 7=\frac{25}{9}\times 4$$

Whakareatia te 2 ki te 7, ka 14.

$$x+14=\frac{25}{9}\times 4$$

Whakareatia te \frac{25}{9} ki te 4, ka \frac{100}{9}.

$$x+14=\frac{100}{9}$$

Tangohia te 14 mai i ngā taha e rua.

$$x=\frac{100}{9}-14$$

Tangohia te 14 i te \frac{100}{9}, ka -\frac{26}{9}.

$$x=-\frac{26}{9}$$

Kua oti te pūnaha te whakatau.

$$x=-\frac{26}{9} y=3 z=3 a=3 b=3$$