Question

(70×60)÷у=42 1692-х=987+698

Answer 1

Помогла с чем смогла)).

Answer 2

Y=70*60
y=4200
y=4200:42
y=100
4200:100=42
42 =42
x=987+698
x=1685
x=1692-1685
x= 7
1692-7=1685
1685=1685

Answer 3

To solve the equations, let's start with the first one:

(70×60) ÷ у = 42

To simplify, we can perform the multiplication first:

4200 ÷ у = 42

To isolate у, we can multiply both sides of the equation by у:

4200 = 42 × у

Now, divide both sides by 42:

4200 ÷ 42 = у

Simplifying the left side:

100 = у

Therefore, у is equal to 100.

Moving on to the second equation:

1692 - х = 987 + 698

To solve for х, let's first simplify the right side:

1692 - х = 1685

To isolate х, we need to move -х to the right side by adding х to both sides:

1692 - х + х = 1685 + х

The -х and +х cancel out on the left side, leaving:

1692 = 1685 + х

Now, subtract 1685 from both sides to solve for х:

1692 - 1685 = х

Simplifying:

7 = х

Therefore, х is equal to 7.