Answer:
Step-by-step explanation:
its B because i took the test
To eliminate x, the coefficients of x's in both equations should be opposite numbers. Since the coefficient of x in the second equation is 3, the coefficient in the first equation should be -3. So she should multiply the first equation by -3.
Answer:
30=3x+6
Step-by-step explanation:
Answer:
10x +3x are like terms
5+1 is terms
Step-by-step explanation: