Answer:
The answer: ( 2 , -3 )
Step-by-step explanation:
equation (1): 5x + 2y = 4
equation (2): y = x - 5
step1: sub ( x-5 ) for y in equation 1:
5x + 2 ( x-5 ) = 4
step2: multiply 2 by the bracket:
5x + 2x - 10 =4
step3: add the x term together:
7x - 10 = 4
step4: add 10 for both sides:
7x = 14
step5: divide by 7 from both sides to get the value of x:
x = 2
step6: sub ( 2 ) for x in equation 2 :
y = x - 5
y = 2 - 5
step7: simplify to get the value of y:
y = -3
So the answer is:
x = 2 and y = -3
( 2 , -3 )
