Question

solve simaltaneously equation: 3a+3b=26;2a+3b=22​

Answer 1

Answer:

b=4.7, a=3.95

Step-by-step explanation:

3a+3b=26;2a+3b=22

3a + 3b=26....x2;2a+3b=22....x3

6a+6b=52; 6a+9b=66

6a-6a+9b-6b=66-52

3b=14

b=4.7

to find a

2a+3(4.7)=22

2a+14.1=22

2a=22-14.1

2a=7.9

a=3.95