Math, asked by saniahuang, 1 year ago

How to solve this simultaneously
4a-2b= -12
-3a-3b= 7

Answers

Answered by arghadge4799
2

hey mate here is your answer

Attachments:
Answered by mass786mass
0

substitute method

4a=-12+2b

a= (-12+2b)/4

-3((-12+2b)/4)+3b-7

(−3/2)b+9+3b-7

(-3/2)b+3b +9-7

(3/2) b+2

b= 2 × 2/3

b= 4/3 (or) 1.33

substitute

-3a-3b=7

-3a-3(4/3)=7

-3a-4=7

-3ea=7+4

a= -11/3 (or) -3.66

Verification

-3a-3b=7

-3(-11/3)-3(4/3)=7

11-4=7

7=7

L.H.S= R.H.S

Similar questions