<span>Solution: 4(6 + 7) = </span>52
6 / 72 = 13 / z
cross multiply
(6)(z) = (72)(13)
6z = 936
z = 936/6
z = 156 <==
Answer:
x = -1255
Step-by-step explanation:
336+x/5=85
Subtract 336 from each side
336-336 +x/5=85-336
x/5 =-251
Multiply each side by 5
x/5 * 5 = -251 *5
x = -1255