Question

Answer the following questions to the best of your ability. Solve each system of equations using substitution or elimination.

y = x + 4
3x -2y =-7

help me please

Answer 1

(1,5)

Explanation:

Use substitution, and plug the first equation into the 2nd one:

3x-2(x+4)=-7 -->

3x-2x-8 = -7 -->

x - 8 = -7

x = 1

Plug this into the first equation:

y = 1 + 4

y = 5

(1,5)

Answer 2

y = x + 4

3x - 2y = -7

We can substitute the first equation into the second

3x - 2(x + 4) = -7

3x - 2x - 8 = -7

x - 8 = -7

x = 1

y = 1 + 4

y = 5

So, the answer is (1, 5)