I do not know this question
Answer:
(3, 0)
Explanation:
x-intercept is when the graph crosses the x-axis when y = 0.
Step 1: Write equation
7x + 3y = 21
Step 2: Set y = 0
7x + 3(0) = 21
7x = 21
x = 3
C:colonists boycotts of British goods were hurting British trade,I hope it helps,I learned this in civics class