Question

Write an equation for each situation and then solve your equation.

Answer 1

Answer:

Q1. 20x = 200. The value of x is 10

Q2. 7 - 3x = 1. The value of x is 2.

Step-by-step explanation:

In order to find an equation, you have to let the number be any variable, such as m or n or z. So I will let the number be x variable. Then the question says a number is multiplied by 20 is equals to 200 :

Let number = x,

$x \times 20 = 200$

$20x = 200$

$20x \div 20 = 200 \div 20$

$x = 10$

Same for the next question. Given that a number multiplied by 3 :

Let number = x,

$x \times 3 = 3x$

Then subtracted by 7 equals to 1 :

$7 - 3x = 1$

$7 - 3x - 7 = 1 - 7$

$- 3x = - 6$

$- 3x \div - 3 = - 6 \div - 3$

$x = 2$