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Step-4

Title: Solve

Grade: 7-b Lesson: S5-L10

Explanation: Hello Students, time to practice and review the steps for the problem.

Lesson Steps

Steps	Problem	Solution
1	Solve	\$ 3/x + 5/x^2 + 2/x = 4/x \$
2	Taking like terms together	\$ 5/x^2 = 4/x - 3/x - 2/x\$
3	After simplification	\$ 5/x^2 = -1/x \$
4	Multiplying on both sides with \$ x^2 \$	\$ 5/\cancel(x^2) \cancel(x^2) = -1/\cancel(x) \cancel(x^2)^x \$
5	After simplification	\$ 5 = -x\$
6	Dividing on both sides by '\$ - \$' of the equality	\$ 5/(-1) = \cancel(-)/\cancel(-)x \$
7	After cancelation	\$ x = -5 \$
8	Answer	D = \$ x = -5\$

Steps

Problem

Solution

Solve

\$ 3/x + 5/x^2 + 2/x = 4/x \$

Taking like terms together

\$ 5/x^2 = 4/x - 3/x - 2/x\$

After simplification

\$ 5/x^2 = -1/x \$

Multiplying on both sides with \$ x^2 \$

\$ 5/\cancel(x^2) \cancel(x^2) = -1/\cancel(x) \cancel(x^2)^x \$

After simplification

\$ 5 = -x\$

Dividing on both sides by '\$ - \$' of the equality

\$ 5/(-1) = \cancel(-)/\cancel(-)x \$

After cancelation

\$ x = -5 \$

Answer

D = \$ x = -5\$