Need will rate 5

a system of equations is shown below:

n = 3m + 7
n − 2m = 1

what is the solution, in the form (m, n), to the system of equations?

(3, 7)
(1, 8)
(−3, −2)
(−6, −11)

which statement is true about the solutions for the equation 4y + 6 = −2?

it has infinitely many solutions.
it has two solutions.
it has one solution.
it has no solution.

the system of equations shown below is graphed on a coordinate grid:

3y + x = 4
2y − x = 6

which statement is true about the coordinates of the point that is the solution to the system of equations?

it is (−2, 2) and lies on both lines.
it is (−5, 3) and lies on both lines.
it is (−5, 3) and does not lie on either line.
it is (−2, 2) and does not lie on either line.

what is the value of z in the equation 2z + 6 = −4?

5
1
−1
−5

which statement is true for the equation 2x − 2x − 7 = −7?

it has infinitely many solutions.
it has two solutions.
it has one solution.
it has no solution.

the incomplete work of a student to solve an equation is shown below:

step 1: 4x + 12 = 4
step 2: ?
step 3: x = −8 ÷ 4
step 4: x = −2

what is the missing step 2?

4x = 8
4x = 16
4x = −16
4x = −8

which set of steps shows the solution to the equation 2y = −8?

y = −8 − 2; y = 6
y = −8 ÷ (−2); y = 4
y = −8 ÷ 2; y = −4
y = −8 − (−2); y = −6

a system of two equations is shown below:

equation c: a = 3b + 6
equation d: a = 7b − 1

what value of a can be substituted into equation d to solve the system of equations?

3b
7b
3b + 6
7b − 1