linear equation in two variable substitution method find the value of x and y for the (1) 0.8x+0.2y=1.2 (2) 0.3x-0.6y=1.2
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0.8x+0.2y=1.2.......1
0.8x=1.2-0.2y
x=1.2-0.2y/0.8.......2
0.3x-0.6y=1.2.......3
put 2 in 3
0.3( 1.2-0.2y/0.8) - 0.6y=1.2
now solve it further and you will get y after you get y subsitute y in equation 1
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