Answer:
Step-by-step explanation:
Using substitution method of simultaneous equation,
2x + 3y = 45 ___________(1)
x + y = 10 ___________(2)
From equation 2 solve for x to produce equation 3
x = 10 - y ______________(3)
Now put equation 3 or rather substitute for x in equation 1
2( 10 - y )+ 3y = 45
Solve the equation now
2x10 -2 X y + 3y =45
20 -2y +3y = 45
y = 45 - 20
y = 25
To get x, substitute for y in equation 3
x = 10 - 25
x = -15
Therefore,
x = -15.
,To check.
Put x=-15 and y = 25 in equation
x +y = 10
-15 +25 = 10.
Therefore, x = -15.
