How do I solve this equation using the substitution method

4x-3y=-7

4x + 1y=-3

Factor pairs of 23 and 29

Determine whether the geometric series is convergent or divergent. 9 + 8 + 64/9 + 512/81 + ... If it is convergent, find its sum?

The height, s, of a ball thrown straight down with initial speed 32 ft/sec from a cliff 48 feet high is s (t) = - 16t2 - 32t + 48, where t is the time elapsed that the ball is in the air.

Find the value of x in x + 25 = 2 (x + 10)

Select ALL the correct answers. Select all the expressions that are equivalent to the polynomial below. (3x - 7) (2x + 8)

What's the result of adding - 2.9a + 6.8 and 4.4a - 7.3?

Use inverse operation to solve it. Show all steps 19 = h/3 - 8

X-15/x=2 what is the values of x

Write as a percent. (if necessary, round to the nearest tenth of a percent.) 13/30

How to evaluate 4x for each value of x?