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095_G6U24_G6U12–‡» ¿º 2011.3.23 11:8 AM ˘ ` 75
Learn how to solve multiplication and division equations.
Use division to solve Use multiplication to solve
multiplication equations. division equations.
3x = 12 y =2
5
3x 12
3 = 3 Divide both y 5=2 5 Multiply both
sides by 3. 5 sides by 5.
x=4
y = 10
The two sides remain equal when the same number is multiplied
or divided to the numbers on both sides of an equation.
2 . Solve the equation and check your answer.
a. 8a = 72 b. b =3
4
Solve: 8a = 72 Check: 8a = 72 Solve: b =3 Check: b =3
8 9 = 72 4 4
8a 72 72 = 72
8 = 8 b 4=3 4 12 =3
4 4
a=9
b = 12 3=3
c. 10c = 60 d. d = 11
7
24. Balance 75
Learn how to solve multiplication and division equations.
Use division to solve Use multiplication to solve
multiplication equations. division equations.
3x = 12 y =2
5
3x 12
3 = 3 Divide both y 5=2 5 Multiply both
sides by 3. 5 sides by 5.
x=4
y = 10
The two sides remain equal when the same number is multiplied
or divided to the numbers on both sides of an equation.
2 . Solve the equation and check your answer.
a. 8a = 72 b. b =3
4
Solve: 8a = 72 Check: 8a = 72 Solve: b =3 Check: b =3
8 9 = 72 4 4
8a 72 72 = 72
8 = 8 b 4=3 4 12 =3
4 4
a=9
b = 12 3=3
c. 10c = 60 d. d = 11
7
24. Balance 75
