Solve the simultaneous equations y=x+2 and x+y=3

Step-by-step explanation:

Write the question in an equation form;

-x+y=2——-equation (1)

x+y=3——-equation(2)

Make y the subject in equation(1)

y=2+x

Substitute y=2+x into equation(2)

x+2+x=3

Group like terms

x+x=3-2

2x=1

Divide both sides by the coefficient of x

2x/2=1/2

x=1/2

Substitute x=1/2 into equation (2)

1/2+y=3

Group like terms

y=3-1/2

y= 6/2 -1/2

y= 5/2

Hence; the values of x and y are 1/2 and 5/2 respectively.

19.side- angle- side

20. angle- side- angle

step-by-step explanation:

x=17

step-by-step explanation:

solve 3x-24=x+10

then that makes it 2x=34 because you subtract an x from both sides to get rid of the one on the right, and then you add 24 to both sides to get rid of the 24 on the left

divide by both sides by 2 to get your answer so that you can get your answer