7.9.a
Solve word problems leading to equations of the form px + q = r and p(x + q) = r, where p, q, and r are specific rational numbers. Solve equations of these forms fluently. Compare an algebraic solution to an arithmetic solution, identifying the sequence of the operations used in each approach.
Example Problems
Solve for x:
Solve for x:
Solve for x:
Khan Academy ResourcesTwo-step equations reviewTwo-step equationsTwo-step equations word problemsFind the mistake: two-step equationsTwo-step equations with decimals and fractionsEquation word problem: super yoga (2 of 2)Equation word problem: super yoga (1 of 2)Two-step equation word problem: computersTwo-step equation word problem: gardenTwo-step equations with decimals and fractions Worked example: two-step equationsTwo-step equations intuitionIntro to two-step equationsTwo-step equation word problem: orangesFind the mistake: two-step equations

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