Answer:
x = -3
Step-by-step explanation:
Given y = 2x + 7,
Make x the subject of the formula.
2x = y - 7 Divide both sides by 2
x = 1/2(y - 7) when y = 1
x = 1/2(1 - 7)
x = 1/2 × -6
x = -3
Answer:
hello
Step-by-step explanation:
y=2x+7 Calculate x when y = 1
2x+7=1
2x+7-7=1-7
2x=-6
(2x)/2 =-6/2
x=-3