To solve the equation 2x+7x=9, we need to find a common denominator for the fractions on the left side. The common denominator of 2 and 7 is 14. Rewrite each fraction with this common denominator, combine them, and then solve for x.
Step 1: Find a Common Denominator
To solve the equation 2x+7x=9, we first find a common denominator for the fractions. The least common denominator of 2 and 7 is 14.
Step 2: Rewrite the Equation
Rewrite each fraction with the common denominator:
147x+142x=9
Step 3: Combine the Fractions
Combine the fractions on the left side:
149x=9
Step 4: Solve for x
To solve for x, multiply both sides by 14 to eliminate the fraction:
9x=126
Then, divide both sides by 9:
x=9126=14