Question

Solve for x&y, y=3x-4 & y= 2x + 1

Please show step by step how you got the answer

Answer 1

(5, 11 )

Explanation:

Given the 2 equations

y = 3x - 4 → (1)

y = 2x + 1 → (2)

Substitute y = 3x - 4 into (2)

3x - 4 = 2x + 1 ( subtract 2x from both sides )

x - 4 = 1 ( add 4 to both sides )

x = 5

Substitute x = 5 into either of the 2 equationsfor corresponding value of y

Substituting into (2)

y = 2(5) + 1 = 10 + 1 = 11

solution is (5, 11 )

Answer 2

This is a system. put the first equation under the second one and subtract. y - y = 0. 2x - 3x = -x. 1 - (-4) = 5. so the result is 0 = -x +5 or x = 5. plug x into either equation and y = 11. the answer is (5, 11).