With both & with explanation : )

3. x=-3, y=-7

4. x=2, y=1

Step-by-step explanation:

Question 3:

x - 5y = 32 ... (i)

2x - 9y = 57 ... (ii)

Solving this simultaneous equation by substitution;

According to (i),

x = 32 + 5y

Substituting it at (ii)

2(32 + 5y) - 9y = 57

64 + 10y - 9y = 57

64 + y = 57

y = 57 - 64 = -7

Substituting y = -7 in (i)

x - 5(-7) = 32

x + 35 = 32

x = 32 - 35 = -3

Question 4:

x + y = 3 ... (i)

5x - 4y = 6 ... (ii)

According to (i),

x = 3 - y

Substituting x = 3 - y in (ii),

5(3 - y) - 4y = 6

15 - 5y - 4y = 6

15 - 9y = 6

9y = 15 - 6 = 9

y = 1

Substituting y = 1 in (i),

x + 1 = 3

x = 3 - 1 = 2

x = 2

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

10010010001010010101001001010010100101010010101010010010101010110010001011010010010001

step-by-step explanation: